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Bianchetti G, Bottoni P, Tringali G, Maulucci G, Tabolacci E, Clementi ME. The polyphenolic compound punicalagin protects skin fibroblasts from UVA radiation oxidative damage. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2024; 6:100186. [PMID: 38846010 PMCID: PMC11153882 DOI: 10.1016/j.crphar.2024.100186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/03/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
Polyphenols are a class of natural compounds that act as antioxidants, neutralising harmful free radicals that would damage cells and increase the risk of diseases such as cancer, diabetes and heart disease. They also reduce inflammation, which is thought to be at the root of many chronic diseases. We are investigating the photoprotective effects of punicalagin, a type of polyphenolic compound mainly found in pomegranates, against UVA-induced damage in human skin fibroblasts. Punicalagin increases cell viability and reduces the high levels of ROS generated by photooxidative stress through its ability to modulate the Nrf2 transcriptional pathway. Interestingly, activation of the Nrf2 pathway results in an increase in reduced glutathione, NADH, and subsequently protects mitochondrial respiratory capacity. Integrating molecular and imaging approaches, our results demonstrate a potential cytoprotective effect of punicalagin against UVA-induced skin damage through an anti-apoptotic mechanism.
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Affiliation(s)
- Giada Bianchetti
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168, Rome, Italy
| | - Patrizia Bottoni
- Dipartimento di Scienze Biotecnologiche di base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy
| | - Giuseppe Tringali
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168, Rome, Italy
- Dipartimento di Sicurezza e Bioetica, Sezione di Farmacologia, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy
| | - Giuseppe Maulucci
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168, Rome, Italy
| | - Elisabetta Tabolacci
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168, Rome, Italy
- Dipartimento di Scienze della Vita e Sanità Pubblica, Sezione di Medicina Genomica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy
| | - Maria Elisabetta Clementi
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” SCITEC-CNR, Largo Francesco Vito 1, 00168, Rome, Italy
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Rao MR, Gaikwad P, Misal P, Gandhi SV. Phyto-cosmeceutical gel containing curcumin and quercetin loaded mixed micelles for improved anti-oxidant and photoprotective activity. Colloids Surf B Biointerfaces 2024; 237:113837. [PMID: 38508086 DOI: 10.1016/j.colsurfb.2024.113837] [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: 01/03/2024] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024]
Abstract
Ultra Violet radiations induced skin damage and associated skin disorders are a widespread concern. The consequences of sun exposure include a plethora of dermal conditions like aging, solar urticaria, albinism and cancer. Sunscreens provide effective protection to skin from these damages. Besides FDA approved physical and chemical UV filters, phytoconstituents with their multi functionalities are emerging as frontrunners in Therapy of skin disorders. Objective of this study was to develop novel phyto-dermal gel (PDG) with dual action of sun protection and antioxidant potential using polymeric mixed micelles (PMMs) are nanocarriers. PMMs of Pluronic F127 and Pluronic F68 loaded with curcumin and quercetin were optimized by 32 factorial designs. Responses studied were vesicle size, SPF, entrapment efficiency of curcumin and quercetin and antioxidant activity. Droplet size ranged from 300 to 500 nm with PDI in between 0.248 and 0.584. Combination of curcumin and quercetin showed enhanced sun protection and antioxidant activity. Pluronics played a significant positive role in various parameters. In present studies vesicle size of factorial batches was found to be between 387 and 527 nm, and SPF was found to be between 18.86 and 28.32. Transmission electron microscopy revealed spherical morphology of micelles. Optimized micelles were incorporated into Carbopol 940. Optimized PDG was evaluated for pH, drug content, spreadability, rheology, syneresis, ex vivo permeation, and skin retention. Hysteresis loop in the rheogram suggested thixotropy of PDG. Syneresis for gels from day 0-30 days was found to be between 0% and 12.46% w/w. SPF of optimized PDG was 27±0.5. Optimized PDG showed no signs of erythema and edema on Wistar rats. PMMs thus effectively enhanced antioxidant and skin protective effect of curcumin and quercetin.
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Affiliation(s)
- Monica Rp Rao
- Department of Pharmaceutics, AISSMS College of Pharmacy, Kennedy Road, Near RTO, Pune, Maharashtra 411001, India
| | - Pranjali Gaikwad
- Department of Pharmaceutics, AISSMS College of Pharmacy, Kennedy Road, Near RTO, Pune, Maharashtra 411001, India
| | - Poonam Misal
- Department of Pharmaceutics, AISSMS College of Pharmacy, Kennedy Road, Near RTO, Pune, Maharashtra 411001, India
| | - Santosh V Gandhi
- Department of Quality Assurance, AISSMS College of Pharmacy, Kennedy Road, Near RTO, Pune, Maharashtra 411001, India
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Girardi C, Benato F, Massironi M, Vindigni V, Stuhlmann D, Massironi M. Evaluation of human skin response to solar-simulated radiation in an ex vivo model: Effects and photoprotection of L-Carnosine. Photochem Photobiol 2024; 100:733-745. [PMID: 37675862 DOI: 10.1111/php.13850] [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: 04/17/2023] [Revised: 06/28/2023] [Accepted: 08/16/2023] [Indexed: 09/08/2023]
Abstract
Sunlight, and more specifically the UV component, induces several skin damages, including sunburns, erythema and photoaging. The purpose of this work is to set up an ex vivo human skin model to assess the capacity of active principles in protecting skin from the deleterious effects of solar radiation. Ex vivo human skin biopsies were cultured in an air-liquid interface and exposed to solar-simulated radiation (SSR, 300-750 nm). L-Carnosine (0.2% and 2%) was applied topically to be tested as photoprotective compound. The effect on oxidative stress induction, photoaging and skin transcriptional profile was assessed by evaluating reactive oxygen species, advanced glycosylation end products formation and gene expression changes. In our model, SSR increases ROS production and AGE accumulation and affects the expression of genes related to oxidative stress, pigmentation, immunity, inflammation and photoaging. Among these pathways, 11 genes were selected as biomarkers to evaluate the skin solar radiation response. Results showed that L-Carnosine provides effective prevention against solar radiation damages reducing ROS, AGEs and mitigating the modulation of the selected biomarker genes. In conclusion, we report that our ex vivo skin model is a valuable system to assess the consequences of solar light exposure and the capacity of topically applied L-Carnosine to counteract them.
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Affiliation(s)
| | | | | | - Vincenzo Vindigni
- Clinic of Plastic and Reconstructive Surgery, University of Padova, Padova, Italy
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Qu C, Wang Q, Zhang X, Sun J, Xu M, Huang Y, Liu Y. Excellent ultraviolet-blocking properties of chiral nematic liquid crystals. Photochem Photobiol 2024; 100:33-40. [PMID: 37051777 DOI: 10.1111/php.13810] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/14/2023]
Abstract
We report the evaluation of chiral nematic liquid crystal (CNLC) in blocking ultraviolet (UV). The CNLC was coated on a calcium fluoride substrate to measure the spectral transmittance, which was measured to detect the UV-blocking effect of CNLC. The results show that CNLC could reduce UVB (290-320 nm) by 99.9% and UVA (320-400 nm) by 95.6%. The barrier effect of cake-shaped semi-solidified CNLC microspheres was further investigated, and it was found that cake-shaped semi-solidified CNLC microspheres could reduce UVB by 58.2% and UVA by 34.1%. This is due to the chemical absorption property of CNLC, which has UV-absorbing functional groups such as the benzene rings. And the physical reflection properties of CNLC could periodically reflect a certain wavelength of light. Liquid crystal (LC) is a rich set of soft materials with rod-like structures widely existing in nature, which is harmless to the human body and environment. Therefore, using CNLC's function of blocking UV, a new sunscreen can be developed.
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Affiliation(s)
- Chaofeng Qu
- Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
| | - Qingxiu Wang
- Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
| | | | - Jing Sun
- Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
| | - Minxing Xu
- Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
| | - Yu Huang
- Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
| | - Yongjun Liu
- Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
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Lu Z, Xia Q, Cheng Y, Lu Q, Li Y, Zeng N, Luan X, Li Y, Fan L, Luo D. Hesperetin attenuates UVA-induced photodamage in human dermal fibroblast cells. J Cosmet Dermatol 2022; 21:6261-6269. [PMID: 35816390 DOI: 10.1111/jocd.15230] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/21/2022] [Accepted: 07/08/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Ultraviolet A (UVA) radiation causes skin damage. Recently, natural compounds have become an interest to protect skin from UV-induced photodamages. METHODS In this study, we investigated the protective effects of hesperetin, a citrus flavonoid, on UVA-induced oxidative stress, inflammation, apoptosis, and photoaging. RESULTS Our results showed that hesperetin increased the cell viability, suppressed the intracellular ROS levels, and decreased the expression of MMPs including MMP-1 and MMP-3, pro-inflammatory cytokines including IL-6 and COX-2 in UVA-irradiated HDFs. Besides, hesperetin exerted an anti-apoptotic effect by increasing expression of anti-apoptotic protein Bcl-2 and decreasing expression of pro-apoptotic protein Bax. Moreover, these anti-photodamage effects were mediated by inhibition of ERK, p38/AP-1, and NF-κb/p65 phosphorylation. CONCLUSION Therefore, hesperetin may be useful in the prevention of UVA-induced skin damage.
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Affiliation(s)
- Zhiyu Lu
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Qingyue Xia
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Yuxin Cheng
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Qian Lu
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Yueyue Li
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Ni Zeng
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Xingbao Luan
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Yuan Li
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Lipan Fan
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
| | - Dan Luo
- Department of dermatology, The first affiliated hospital of Nanjing Medical University, Nanjing, China
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El-Aziz FEZAA, Ismail MS, Askary AE, El-Kott AF, Tantawy AA. The assessment of the protective impact of spidroin extract against UV-A radiation damage by using earthworms (Aporrectodea caliginosa) as a robust human skin model via macroscopic and histological observations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:44906-44916. [PMID: 35141825 PMCID: PMC9200702 DOI: 10.1007/s11356-022-18861-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Numerous studies have confirmed the damage caused by excessive exposure to ultraviolet-A rays. Malignant melanoma and skin cancer are two of the most serious health consequences. Thus, the UV-A protectant is intended to protect the skin, especially the two primary layers of skin (epidermis that represents the interface between the body and its surroundings and dermis). Spider silk is the most powerful natural fibre due to its regeneration, biocompatibility, antimicrobial, wound healing, antiseptic, and blood clotting properties. This work targeted to determine the protective effect of spidroin extract against UV-A radiation damage. Earthworms Aporrectodea caliginosa were collected from Assiut University's farm. Each set of ten earthworms was separated into six groups and placed in a plastic container. Webs of spiders collected from trees and old houses. Spidroin was extracted and utilised in this work to determine the potential effects of topical application on UV-A protection. The experiment is divided into two sections: (1) UV-A exposure and (2) the use of spidroin extract to protect the earthworms from ultraviolet radiation. Two control groups (1،2) of worms were not received UV-A exposure, and four groups (3,4,5,6) were exposed to UVR-A. In contrast, groups (5,6) were received spidroin extract before exposure to UV-A. Each group from the groups (3,4,5,6) was exposed for three consecutive days (¼ hour/day, ½ hour/day, and 1 h/day), using a UV-Lamp with a wavelength of 366 nm. The histopathological changes revealed that after 1⁄4 h of UV exposure, the cuticle was swollen with a slightly detached epithelium. The cuticle was down after 1⁄2 h of exposure, and the epidermis was totally damaged and necrosed. After 1 h, the exposure showed destruction of the epidermis in the circular muscle with a loss of muscle filament integrity, varying size, and altered nucleus form, along with mild disintegration of longitudinal muscle. Spidroin extract is critical for earthworm protection against UV-A radiation damage and able to regeneration. For the first time, morphological and histological analysis was established to detect the Spidroin extract evaluated for topical application on earthworms. Earthworms can be considered as a robust human skin model prior to UV-A exposure. It induces a complete protective effect against UV-A radiation damage in earthworms.
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Affiliation(s)
| | - May S Ismail
- Pharmaceutics Department, Faculty of Pharmacy, South Valley University, Qena, Egypt
| | - Ahmad El Askary
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O.Box 11099, Taif, 21944, Saudi Arabia
| | - Attalla F El-Kott
- Biology Department, Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia
- Zoology Department, College of Science, Damanhour University, Damanhour, 22511, Egypt
| | - Ahmed A Tantawy
- Biotechnology Department, Faculty of Science, Zagazig University, Zagazig, Egypt.
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Matouskova K, Vandenberg LN. Towards a paradigm shift in environmental health decision-making: a case study of oxybenzone. Environ Health 2022; 21:6. [PMID: 34998398 PMCID: PMC8742442 DOI: 10.1186/s12940-021-00806-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 11/10/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Technological advancements make lives safer and more convenient. Unfortunately, many of these advances come with costs to susceptible individuals and public health, the environment, and other species and ecosystems. Synthetic chemicals in consumer products represent a quintessential example of the complexity of both the benefits and burdens of modern living. How we navigate this complexity is a matter of a society's values and corresponding principles. OBJECTIVES We aimed to develop a series of ethical principles to guide decision-making within the landscape of environmental health, and then apply these principles to a specific environmental chemical, oxybenzone. Oxybenzone is a widely used ultraviolet (UV) filter added to personal care products and other consumer goods to prevent UV damage, but potentially poses harm to humans, wildlife, and ecosystems. It provides an excellent example of a chemical that is widely used for the alleged purpose of protecting human health and product safety, but with costs to human health and the environment that are often ignored by stakeholders. DISCUSSION We propose six ethical principles to guide environmental health decision-making: principles of sustainability, beneficence, non-maleficence, justice, community, and precautionary substitution. We apply these principles to the case of oxybenzone to demonstrate the complex but imperative decision-making required if we are to address the limits of the biosphere's regenerative rates. We conclude that both ethical and practical considerations should be included in decisions about the commercial, pervasive application of synthetic compounds and that the current flawed practice of cost-benefit analysis be recognized for what it is: a technocratic approach to support corporate interests.
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Affiliation(s)
- Klara Matouskova
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, 171C Goessmann, 686 N. Pleasant Street, Amherst, MA 01003 USA
| | - Laura N. Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts – Amherst, 171C Goessmann, 686 N. Pleasant Street, Amherst, MA 01003 USA
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Araújo MJ, Soares AMVM, Monteiro MS. Effects of exposure to the UV-filter 4-MBC during Solea senegalensis metamorphosis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:51440-51452. [PMID: 33987723 DOI: 10.1007/s11356-021-14235-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
Many personal care products integrate UV-filters, such as 4-methylbenzylidene camphor (4-MBC), a compound frequently detected in aquatic habitats, including coastal areas. However, the potential effects of 4-MBC to saltwater species have been poorly studied. Therefore, the main objective of this work is to study the effects of 4-MBC exposure on Solea senegalensis during metamorphosis, a sensitive life stage of this flatfish. To achieve this, fish were exposed to 4-MBC (0.2-2.0 mg L-1) for 48 h at the beginning of metamorphosis (13 days after hatching, dah). After this period, the fish were transferred to a clean medium. They were fed and maintained until more than 80% of individuals in the control group completed the metamorphosis (24 dah). Mortality, malformations, and metamorphic progression were studied daily. Growth, behavior, and biochemical markers of neurotransmission (acetylcholinesterase, AChE), oxidative stress (catalase, CAT; lipid peroxidation, LPO), detoxification (glutathione S-transferase, GST), and anaerobic metabolism (lactate dehydrogenase, LDH) were also determined at the end of the experiment. An acceleration of metamorphosis progression was observed during and 2 days after the 4-MBC exposure in all concentrations tested. In addition, reduced length, inhibition of CAT activity, and induction of oxidative damage were observed (lowest observed effect concentration, LOEC = 0.928 mg L-1 4-MBC for length, CAT, and LPO). Short-term exposure to 4-MBC at the onset of metamorphosis affected S. senegalensis at several levels of organization, even after 9 days in a clean medium, including growth and metamorphic progression, suggesting possible long-term adverse effects in this species.
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Affiliation(s)
- Mário J Araújo
- CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research of the University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Amadeu M V M Soares
- CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Marta S Monteiro
- CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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Mubeen M, Khalid MA, Mukhtar M, Shahrum S, Zahra S, Shabbir S, Iqbal A. Elucidating the Photoluminescence Quenching in Ensulizole: an Artificial Water Soluble Sunscreen. J Fluoresc 2021; 31:1055-1063. [PMID: 33956267 DOI: 10.1007/s10895-021-02736-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/03/2021] [Indexed: 10/21/2022]
Abstract
Employing natural or artificial sunscreens is essential to protect the skin from ultraviolet radiations that cause premature aging and develop melanoma and other forms of skin cancer. The 2-Phenylbenzimidazole-5-sulfonic acid, commonly known as ensulizole is a water-soluble artificial sunscreen that absorb UV-B (280 nm - 315 nm) radiations and protects the skin against the harmful effects of these radiations. We have measured steady-state photoluminescence (SSPL) spectra and photoluminescence (PL) kinetics of this compound in various conditions. Steady-state absorption indicates a strong absorption feature at 303 nm and a weak one at 316 nm that have been identified as π → π* and n → π* transitions, respectively. The spectra of PL induced by these absorptions indicate that the PL of ensulizole is less Stokes-shifted in polar solvents and more Stokes-shifted in non-polar solvents. The average PL lifetime of ensulizole is longer in non-polar solvents than in polar solvents and it exhibits the shortest PL lifetime in aqueous medium that maximize its transition efficiency in water. This suggests in non-polar solvents intersystem crossing is the dominant mode of relaxation of the excited ππ* state. Furthermore, an increase of pH of ensulizole solution decreases the PL intensity and the lifetime. Stern-Volmer equation is employed to evaluate bimolecular quenching rate constant kq. The evaluation result suggests the diffusional dynamic mode of PL quenching is operative.
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Affiliation(s)
- Muhammad Mubeen
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | | | - Maria Mukhtar
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Saba Shahrum
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Shanila Zahra
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Saima Shabbir
- Department of Materials Science and Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Azhar Iqbal
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
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Indrisari M, Sartini S, Miskad UA, Djawad K, Amir Tahir K, Nurkhairi N, Muslimin L. Photoprotective and Inhibitory Activity of Tyrosinase in Extract and Fractions of Terminalia catappa L. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.5940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND: Chronic exposure to ultraviolet (UV) radiation causes various skin damages. One of the most significant risks to skin occurrence is cancer and photoaging. Recent strategies for photoprotection have included incorporating natural sunscreens and antityrosinase.
AIM: This study aimed to determine the sun protection factor (SPF) and inhibitory activity of tyrosinase of the extract and fractions of leaves of Terminalia catappa Linn.
METHOD: The dried leaves were macerated with 96% ethanol and fractionated using n-hexane, ethyl acetate, and water. The extract and fractions were screened for their phytochemical profile, and tyrosinase inhibitory activity was evaluated and expressed as IC50. The photoprotective activity of extract and fractions were measured by a UV spectrophotometric.
RESULTS: Among the tested samples, the ethyl acetate fraction showed ultraprotection on erythema transmission rate (%TE), sunblock on pigmentation transmission (%TP), and minimum protection on SPF. Ethyl acetate fraction showed the highest activity to inhibit tyrosinase (IC50 was 50.54±2.37 μg/mL). The phytochemical analysis of ethyl acetate fraction revealed the presence of phenolic and flavonoid compounds.
CONCLUSION: This study’s findings revealed a higher tyrosinase inhibitor and sun protection capacity of ethyl acetate fraction of leaves of T. catappa and suitable to develop as a cosmetic agent.
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Pei L, Luo Y, Gu X, Wang J. Formation, Stability and Properties of Hemp Seed Oil Emulsions for Application in the Cosmetics Industry. TENSIDE SURFACT DET 2021. [DOI: 10.3139/113.110712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Abstract
Hemp seed oil has good sun protection, repair, anti-allergy and anti-aging effects, and is a high quality raw material for the production of skincare products. However, the influence of surfactants and co-surfactants on the emulsification of hemp seed oil in aqueous solution has been rarely investigated. In this investigation, the surfactants and co-surfactants which were suitable for hemp seed oil emulsion were optimized, and the factors which influence the particle size and the stability of the emulsion were studied. Moreover, the application of hemp seed emulsion in different cosmetics was also further investigated. It was found that sorbitan monooleate/polysorbate-80 and glyceryl stearate were the most effective surfactant and co-surfactant in the emulsification of hemp seed oil. After three months the hemp seed oil emulsion had no layered separation and remained homogeneous at -48C, 258C and 408C. The water-resistant sunscreens and the hemp seed oil sunscreens were homogeneous pastes, had a soft texture and were stable at higher temperatures. No microorganisms were detected in these cosmetic creams. Therefore, hemp seed oil is suitable for sunscreen cosmetic materials.
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Affiliation(s)
- Liujun Pei
- Engineering Research Center of Textile Chemistry and Clean Production, Shanghai University of Engineering Science, Shanghai , 201620, PR China
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai , 201620, PR China
| | - Yuni Luo
- Engineering Research Center of Textile Chemistry and Clean Production, Shanghai University of Engineering Science, Shanghai , 201620, PR China
| | - Xiaomin Gu
- Engineering Research Center of Textile Chemistry and Clean Production, Shanghai University of Engineering Science, Shanghai , 201620, PR China
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai , 201620, PR China
| | - Jiping Wang
- Engineering Research Center of Textile Chemistry and Clean Production, Shanghai University of Engineering Science, Shanghai , 201620, PR China
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai , 201620, PR China
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Phototoxic and Photoallergic Contact Reactions. Contact Dermatitis 2021. [DOI: 10.1007/978-3-030-36335-2_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Song C, Jeong D, Hong YH, Li WY, Lee SW, Hossain MA, Taamalli A, Kim JH, Kim JH, Cho JY. Anti-Inflammatory and Photoaging-Protective Effects of Olea europaea through Inhibition of AP-1 and NF-[Formula: see text] B Pathways. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:1895-1913. [PMID: 33308098 DOI: 10.1142/s0192415x20500950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Olea europaea is a beneficial edible plant with a number of biological activities like anti-inflammatory, anti-oxidant, antithrombic, antihyperglycemic, and anti-ischemic activities. The mechanisms behind the antiphotoaging and anti-inflammatory effects of Olea europaea are not fully understood. To investigate how an ethanol extract of Olea europaea (Oe-EE) exerts these effects, we explored its activities in human keratinocytes and dermal fibroblasts. We assessed the anti-oxidant effects of Oe-EE via 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2[Formula: see text]-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays and measured the expression levels of matrix metalloproteinases (MMPs), cyclooxygenase-2, interleukin (IL)-6, tumor necrosis factor (TNF)-[Formula: see text], and moisturizing factors. Antiphotoaging and anti-inflammatory mechanisms of Oe-EE were explored by assessing signaling molecule activation via immunoblotting. Oe-EE treatment decreased the mRNA expression level of MMPs, cyclooxygenase-2, IL-6, and TNF-[Formula: see text] and restored type I collagen, filaggrin, and sirtuin 1 expression in UVB-irradiated cells. Furthermore, Oe-EE inhibited the activities of several activator protein 1 regulatory enzymes, including extracellular signal-regulated kinase (ERK), p38, and c-Jun N-terminal kinase (JNK), and inhibited nuclear factor (NF)-[Formula: see text]B pathway signaling proteins. Therefore, our results indicate that Oe-EE has photoaging-protective and anti-inflammatory effects.
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Affiliation(s)
- Chaoran Song
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Deok Jeong
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yo Han Hong
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Wan Yi Li
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Yunnan 650205, P. R. China
| | - Sang Woo Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141 Republic of Korea
| | - Mohammad Amjad Hossain
- College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Amani Taamalli
- Laboratory of Olive Biotechnology, Center of Biotechnology-Technopole of Borj-Cedria, BP 901, Hammam-Lif 2050, Tunisia.,Department of Chemistry, University of Hafr Al Batin, Hafr Al Batin 31991, Kingdom of Saudi Arabia
| | - Ji Hye Kim
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jong-Hoon Kim
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141 Republic of Korea
| | - Jae Youl Cho
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea
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Murphy RB, Staton J, Rawal A, Darwish TA. The effect of deuteration on the keto-enol equilibrium and photostability of the sunscreen agent avobenzone. Photochem Photobiol Sci 2020; 19:1410-1422. [PMID: 32966538 DOI: 10.1039/d0pp00265h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The remarkable properties of deuterium have led to many exciting and favourable results in enhancing material properties, for applications in the physical, medical, and biological sciences. Deuterated isotopologues of avobenzone, a sunscreen active ingredient, were synthesised to examine for any changes to the equilibrium between the diketone and enol isomers, as well as their UV photostability and photoprotective properties. Prior to UV irradiation, deuteration of the diketone methylene/enol moiety (i.e. avobenzone-d2) led to an increase in the % diketone compared to non-deuterated, determined by 1H NMR experiments in CDCl3 and C6D12. This can be rationalised from two angles; mechanistically by a deuterium kinetic isotope effect for the CH vs. CD abstraction step during tautomerisation from the diketone to the enol, and a weaker chelating hydrogen bond for the enol when deuterated allowing increased equilibration to the diketone. Avobenzone-d2 was further examined by solid state 13C NMR. The higher % diketone for avobenzone-d2 was postulated to favour increased photodegradation by a non-reversible pathway. This was investigated by UV irradiation of the avobenzone isotopologues in C6D12, both in real time in situ within the NMR by fibre optic cable as well as ex situ using sunlight. An increase in the relative amount of photoproducts for avobenzone-d2 compared to non-deuterated was observed by 1H NMR upon UV irradiation ex situ. Overall, the study demonstrates that deuteration can be applied to alter complex equilibria, and has potential to be manifested as changes to the properties and behaviour of materials.
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Affiliation(s)
- Rhys B Murphy
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
| | - John Staton
- Eurofins Dermatest, 20 King Street, Rockdale, New South Wales 2216, Australia
| | - Aditya Rawal
- Nuclear Magnetic Resonance Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, Australia
| | - Tamim A Darwish
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
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15
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Abbas N, Manzoor S, Saeed S, Husnain SM, Tariq M, Akhtar Z, Saira N, Yasmin G. Investigation of calcium silicate as a natural clay-based sunblock: Formulation and characterization. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2020; 37:39-48. [PMID: 32969087 DOI: 10.1111/phpp.12608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/19/2020] [Accepted: 09/13/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Sunlight exposure causes several types of health issues to humans, and in particular, it affects especially the skin. Among the most common harmful issues developed by UV exposure are erythema, pigmentation, and lesions in DNA, which may lead to cancer. These long-term effects can be minimized with the use of sunscreen. OBJECTIVE The use of commercial UV filters causes severe side effects such as skin allergy and whitening of the skin. Therefore, in this study the effectiveness of Ca2 SiO4 , a compound abundantly present in the soils of certain South Asian regions, has been the first time explored as UV filter. This compound leaves a low amount of white residue on the skin and is highly stable. METHOD The comparative study of a cosmetic formulation having 5% Ca2 SiO4 , and other formulations containing 5% TiO2 and 5% ZnO as inorganic UV filters, was performed to evaluate the physical and chemical stability. RESULT The zeta potential and chemical stability of formulations containing these different UV filters were investigated by using UV-Vis spectroscopy, FTIR-ATR, and X-ray diffraction. Results indicated Ca2 SiO4 as a promising innovative UV filter with an SPF value of 37.94. One of the reasons is its low interaction with organic filter, that is, PABA, as compared to commercial ZnO and TiO2 inorganic UV filters. Biological absorption in organs was studied by ICP-MS on model mice. CONCLUSION It also has a low photocatalytic activity; thus, formation of radicals is minimum. Moreover, Ca2 SiO4 showed a recognized ability to leave a low amount of white residue on the skin combined with great stability.
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Affiliation(s)
- Naseem Abbas
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Suryyia Manzoor
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Saira Saeed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | | | - Muhammad Tariq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Zeeshan Akhtar
- Department of Applied Chemistry and Chemical Technology, University of Karachi, Karachi, Pakistan
| | - Naveeda Saira
- Research and Development Labs, Servo Motor Oil Private Limited, Multan, Pakistan
| | - Ghazala Yasmin
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
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Choi KH, Kim ST, Bin BH, Park PJ. Effect of Konjac Glucomannan (KGM) on the Reconstitution of the Dermal Environment against UVB-Induced Condition. Nutrients 2020; 12:nu12092779. [PMID: 32932917 PMCID: PMC7551622 DOI: 10.3390/nu12092779] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 01/15/2023] Open
Abstract
Skin layers serve as a barrier against unexpected critical changes in the body due to environmental factors. Excessive ultraviolet (UV) B exposure increases the levels of age-related factors, leading to senescent cells and damaged skin tissues. Widely used as a dietary supplement, konjac (Amorphophallus konjac) glucomannan (KGM) has shown skin regeneration potential in patch or sheet form with anti-inflammatory or immunosuppressive effects. However, the ability of KGM to reconstitute senescent/damaged skin following UV radiation has not been explored. Here, we demonstrate that KGM alleviates skin damage by increasing the proportion of young cell populations in UVB-exposed senescent human epidermal primary melanocytes. Young cell numbers increased depending on KGM dosage, but the senescent cells were not removed. Real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot analysis showed that mRNA and protein levels of age- and pigmentation-related factors decreased in a manner dependent on the rate at which new cells were generated. Moreover, an analysis of mRNA and protein levels indicated that KGM facilitated youth by increasing cell proliferation in UVB-damaged human fibroblasts. Thus, KGM is a highly effective natural agent for maintaining skin homeostasis by promoting the reconstitution of the dermal environment against UVB-induced acute senescence or skin damage.
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Affiliation(s)
- Kyung Ho Choi
- Department of Applied Biology, Ajou University, 206 World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16499, Korea;
| | - Sung Tae Kim
- Department of Pharmaceutical Engineering, Inje University, Gimhae-si, Gyeongsangnam-do 50834, Korea;
- Department of Nanoscience and Engineering, Inje University, Gimhae-si, Gyeongsangnam-do 50834, Korea
| | - Bum Ho Bin
- Department of Applied Biology, Ajou University, 206 World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16499, Korea;
- Correspondence: (B.H.B.); (P.J.P.); Tel.: +82-31-219-2618 (B.H.B.); +82-31-280-5639 (P.J.P.)
| | - Phil June Park
- AMOREPACIFIC R&D Center, 1920 Yonggu-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17074, Korea
- Correspondence: (B.H.B.); (P.J.P.); Tel.: +82-31-219-2618 (B.H.B.); +82-31-280-5639 (P.J.P.)
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17
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Krokidi KM, Turner MAP, Pearcy PAJ, Stavros VG. A systematic approach to methyl cinnamate photodynamics. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1811910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
| | - Matthew A. P. Turner
- Department of Chemistry, University of Warwick, Coventry, UK
- Department of Physics, University of Warwick, Coventry, UK
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18
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Mei XL, Wei FL, Jia LL, Ji YZ. An alternative pathway for cellular protection in BRAF inhibitor resistance in aggressive melanoma type skin cancer. Chem Biol Interact 2020; 323:109061. [PMID: 32194039 DOI: 10.1016/j.cbi.2020.109061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/10/2020] [Accepted: 03/16/2020] [Indexed: 12/23/2022]
Abstract
Oncogenic alterations in the BRAF gene are identified in an estimate of 50% of melanomas and cause melanoma development. BRAF kinase inhibitors (BRAFi), including vemurafenib and dabrafenib, were discovered and used in the clinical treatment of BRAF-mutant metastatic melanoma. Though, BRAFi's therapeutic advantages are short term and short-lived associated with drug resistance. Although a few pathways of developed BRAFi resistance have also been established, in approximately 40% of melanomas, the cause for inherited resistance remains unclear. Recognizing a new process of developed BRAFi resistance might provide new possibilities to successfully treat BRAF mutant melanoma. In this study, we are exploring the compensatory alternative pathway followed by BRAFi/MEKi treated resistant cell for maintaining the long-term integrity and survival.
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Affiliation(s)
- Xiang-Lin Mei
- Department of Pathology, Second Hospital of Jilin University, Changchun, China
| | - Fang-Li Wei
- Department of Dermatology, Affiliated Hospital of Tai'an Medical College, Tai'an, China
| | - Li-Li Jia
- Department of dermatology, FAW General Hospital, Changchun, China
| | - Yong-Zhi Ji
- Department of Dermatology, Second Hospital of Jilin University, Changchun, China.
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19
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Holt EL, Krokidi KM, Turner MAP, Mishra P, Zwier TS, Rodrigues NDN, Stavros VG. Insights into the photoprotection mechanism of the UV filter homosalate. Phys Chem Chem Phys 2020; 22:15509-15519. [DOI: 10.1039/d0cp02610g] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Homosalate has been found to exhibit favourable photophysics for inclusion in sunscreens, using a combination of spectroscopic and computational approaches.
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Affiliation(s)
- Emily L. Holt
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Molecular Analytical Science Centre for Doctoral Training
| | | | - Matthew A. P. Turner
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Molecular Analytical Science Centre for Doctoral Training
| | - Piyush Mishra
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
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21
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Bhatia S, Sardana S, Sharma A, Vargas De La Cruz CB, Chaugule B, Khodaie L. Development of broad spectrum mycosporine loaded sunscreen formulation from Ulva fasciata delile. Biomedicine (Taipei) 2019; 9:17. [PMID: 31453798 PMCID: PMC6711319 DOI: 10.1051/bmdcn/2019090317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 05/02/2019] [Indexed: 11/14/2022] Open
Abstract
Ba.ckground: Sunscreen formulations primarily offer protection against UV induced damages however nowadays it also maintains skin natural physiological conditions. Current global market is flooded with numerous sunscreen products which offer protection to skin against several UV induced damages. However most of these sunscreen formulations offers narrow spectrum protection against UV and also suffer from stability as well as toxicity related issues. Methods: Present work aims to isolate mycosporine amino acid (Mgy) from green alga namely Ulva fasciata (U. fasciata) and study its sunscreen potential against widely used domestic marketed formulation. Stability evaluations were also performed for almost 90 days. Results: Results demonstrated that the isolated compound, mycosporine glycine (Mgy) preserved physicochemical properties of the product and offered good stability for all formulations throughout the experimental period. Furthermore, Mgy loaded carbopol gel showed better sunscreen protection against marketed formulation in a concentration dependent manner. (7.709). Conclusion: (6.806) Novel Myg loaded gel was proved to demonstrate several quality characteristics that may unlock new prospects for the production of more efficient, safe, and economic skin-care products.
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Affiliation(s)
- Saurabh Bhatia
- Amity institute of pharmacy, Amity University Haryana, Gurgaon, Haryana-122413, India
| | - Satish Sardana
- Amity institute of pharmacy, Amity University Haryana, Gurgaon, Haryana-122413, India
| | - Ajay Sharma
- Amity Institute of Pharmacy, Amity University Madhya Pradesh, Maharajpura, Gwalior (MP)-474005, India
| | - Celia Bertha Vargas De La Cruz
- Departemnt of Pharmacy and Biochemistry, Centro Latinoamericano de Enseñanza e Investigación en Bacteriologia Alimentaria, National San Marcos University, Lima Peru-15081
| | - Bhupal Chaugule
- Poona college of Pharmacy, Bharati Vidyapeeth Deemed University, Pune, Maharashtra-411045, India
| | - Laleh Khodaie
- Faculty of Persian Traditional Medicine, Tabriz University of Medical, Sciences, Tabriz-51368, Iran
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22
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Cerqueira C, Nigro F, Campos VEB, Rossi A, Santos-Oliveira R, Cardoso V, Vermelho AB, Dos Santos EP, Mansur CRE. Nanovesicle-based formulations for photoprotection: a safety and efficacy approach. NANOTECHNOLOGY 2019; 30:345102. [PMID: 30965299 DOI: 10.1088/1361-6528/ab177c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Vesicular nanosystems are versatile and they are able to encapsulate actives with different solubilities, such as lipophilic and hydrophilic compounds. The most well-known vesicular nanosystems are liposomes and niosomes, the last one is formed by non-ionic surfactants. In the present work, we developed photoprotective niosomes containing sunscreens (octyl methoxycinnamate, diethylamino hydroxybenzoyl hexyl benzoate and phenylbenzimidazole sulfonic acid), non-ionic surfactants, cholesterol and stearylamine (positive-charged lipid). Studies based on dynamic light scattering techniques, entrapment efficiency and morphology by transmission electron microscopy were performed to characterize the niosomes. In addition, rheology, pH, in vitro sun protection factor (SPF) efficacy and toxicity and in vivo and in vitro safety were determined for the niosome formulations F-N1 and F-N2. The mean sizes of N1 and N2 were 168 ± 5 nm and 192 ± 8 nm, respectively, and their morphologies were spherical, unilamellar and with an entrapment efficiency of more than 45% for each sunscreen. Both formulations, F-N1 and F-N2 presented characteristics of pseudoplastic non-Newtonian fluids, showing declining viscosity with increasing shear rate applied. SPF values were considered satisfactory, 34 ± 8 for formulation F-N1 and 34 ± 5 for F-N2. The formulations did not present toxicity when tested in macrophages and the pH was compatible with skin, which minimizes allergies. The in vitro safety assay showed lipophilic sunscreens greater affinity for the epidermis, since this layer contains natural lipids. In vivo safety assay suggests that the increased skin retention of N2 is directly correlated with the positive charge of stearylamine. Stable photoprotective niosomes were obtained and were shown to be promising nanostructures to be used against solar radiation.
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Affiliation(s)
- Cristal Cerqueira
- Federal University of Rio de Janeiro, Institute of Macromolecules, Center of Technology, Ilha do Fundão, Rio de Janeiro, ZIP Code: 21945-970, Brazil
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23
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Laikova KV, Oberemok VV, Krasnodubets AM, Gal'chinsky NV, Useinov RZ, Novikov IA, Temirova ZZ, Gorlov MV, Shved NA, Kumeiko VV, Makalish TP, Bessalova EY, Fomochkina II, Esin AS, Volkov ME, Kubyshkin AV. Advances in the Understanding of Skin Cancer: Ultraviolet Radiation, Mutations, and Antisense Oligonucleotides as Anticancer Drugs. Molecules 2019; 24:E1516. [PMID: 30999681 PMCID: PMC6514765 DOI: 10.3390/molecules24081516] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/13/2019] [Accepted: 04/15/2019] [Indexed: 12/15/2022] Open
Abstract
Skin cancer has always been and remains the leader among all tumors in terms of occurrence. One of the main factors responsible for skin cancer, natural and artificial UV radiation, causes the mutations that transform healthy cells into cancer cells. These mutations inactivate apoptosis, an event required to avoid the malignant transformation of healthy cells. Among these deadliest of cancers, melanoma and its 'younger sister', Merkel cell carcinoma, are the most lethal. The heavy toll of skin cancers stems from their rapid progression and the fact that they metastasize easily. Added to this is the difficulty in determining reliable margins when excising tumors and the lack of effective chemotherapy. Possibly the biggest problem posed by skin cancer is reliably detecting the extent to which cancer cells have spread throughout the body. The initial tumor is visible and can be removed, whereas metastases are invisible to the naked eye and much harder to eliminate. In our opinion, antisense oligonucleotides, which can be used in the form of targeted ointments, provide real hope as a treatment that will eliminate cancer cells near the tumor focus both before and after surgery.
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Affiliation(s)
- Kateryna V Laikova
- Medical Academy named after S.I. Georgievsky, V.I. Vernadsky Crimean Federal University, Lenin Boulevard 5/7, 295051 Simferopol, Crimea.
- Research Institute of Agriculture of Crimea, Kiyevskaya St. 150, 295493, Simferopol, Crimea.
| | - Volodymyr V Oberemok
- Taurida Academy, V.I. Vernadsky Crimean Federal University, Vernadsky Av. 4, 295007 Simferopol, Crimea.
- Nikita Botanical Gardens ⁻ National Scientific Centre RAS, Nikitsky spusk 52, vil. Nikita, 298648 Yalta, Crimea.
| | - Alisa M Krasnodubets
- Taurida Academy, V.I. Vernadsky Crimean Federal University, Vernadsky Av. 4, 295007 Simferopol, Crimea.
| | - Nikita V Gal'chinsky
- Taurida Academy, V.I. Vernadsky Crimean Federal University, Vernadsky Av. 4, 295007 Simferopol, Crimea.
| | - Refat Z Useinov
- Taurida Academy, V.I. Vernadsky Crimean Federal University, Vernadsky Av. 4, 295007 Simferopol, Crimea.
| | - Ilya A Novikov
- Taurida Academy, V.I. Vernadsky Crimean Federal University, Vernadsky Av. 4, 295007 Simferopol, Crimea.
| | - Zenure Z Temirova
- Medical Academy named after S.I. Georgievsky, V.I. Vernadsky Crimean Federal University, Lenin Boulevard 5/7, 295051 Simferopol, Crimea.
| | - Mikhail V Gorlov
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047 Moscow, Russia.
| | - Nikita A Shved
- Centre for Genomic and Regenerative Medicine, School of Biomedicine, Far Eastern Federal University, Sukhanova St. 8, 690090 Vladivostok, Russia.
- National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Palchevsky St. 17, 690041 Vladivostok, Russia.
| | - Vadim V Kumeiko
- Centre for Genomic and Regenerative Medicine, School of Biomedicine, Far Eastern Federal University, Sukhanova St. 8, 690090 Vladivostok, Russia.
- National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Palchevsky St. 17, 690041 Vladivostok, Russia.
| | - Tatiana P Makalish
- Medical Academy named after S.I. Georgievsky, V.I. Vernadsky Crimean Federal University, Lenin Boulevard 5/7, 295051 Simferopol, Crimea.
| | - Evgeniya Y Bessalova
- Medical Academy named after S.I. Georgievsky, V.I. Vernadsky Crimean Federal University, Lenin Boulevard 5/7, 295051 Simferopol, Crimea.
| | - Iryna I Fomochkina
- Medical Academy named after S.I. Georgievsky, V.I. Vernadsky Crimean Federal University, Lenin Boulevard 5/7, 295051 Simferopol, Crimea.
| | - Andrey S Esin
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047 Moscow, Russia.
| | - Mikhail E Volkov
- Ltd "NPF Syntol", Тimiryazevskaya St. 42, 127434 Moscow, Russia.
| | - Anatoly V Kubyshkin
- Medical Academy named after S.I. Georgievsky, V.I. Vernadsky Crimean Federal University, Lenin Boulevard 5/7, 295051 Simferopol, Crimea.
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24
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Gonçalo M. Phototoxic and Photoallergic Reactions. Contact Dermatitis 2019. [DOI: 10.1007/978-3-319-72451-5_18-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Al-Eitan LN, Aljamal HA, Alkhatib RQ. Gas chromatographic-mass spectrometric analysis of sunscreens and their effects on mice liver and kidney enzyme function. Clin Cosmet Investig Dermatol 2018; 12:11-21. [PMID: 30643445 PMCID: PMC6319425 DOI: 10.2147/ccid.s190359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background Sunscreens are one of the most widely used products among cosmetics and personal care products. Recent studies have shown that some of sunscreen formulations may contain toxic, carcinogenic, or even nonallowed chemicals that may affect skin, cells, and hormones. Materials and methods This study aimed to develop and validate a method that allows the determination of sunscreen ingredients by gas chromatography-mass spectrometry (GC-MS). Analysis of original sunscreen products (n=5) from a licensed pharmacy and counterfeit sunscreen products (n=5) from local markets in Jordan was performed using GC-MS. pH stability of the sunscreen samples were also monitored under different storage temperatures. Topical application of sunscreens on mice skin was conducted to study their effects on liver and kidney enzymes' function. Results In terms of pH stability, there is a significant change in pH at different degrees of temperature between the products. Diethyl phthalate (DEP) was detected in two counterfeit products and was not mentioned on the ingredients' label. DEP was reported for its percutaneous absorption and systemic uptake in the literature. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were significantly increased with a P<0.005 in some groups treated with original sunscreens under sun radiation. Creatinine showed a significant decrease in some groups treated with original and counterfeit sunscreens, while blood urea nitrogen (BUN) showed no differences. Conclusion This study presents a method that allows the scanning and profiling of sunscreen ingredients as well as investigates their stability, permeation, and toxicity. Profiling of sunscreen product, changing in pH stability, and analyzing kidney and liver enzymes' level would be of a great impact on products' safety and consumers' health.
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Affiliation(s)
- Laith N Al-Eitan
- Department of Applied Biological Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan, .,Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan,
| | - Hanan A Aljamal
- Department of Applied Biological Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan,
| | - Rami Q Alkhatib
- Department of Applied Biological Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan, .,Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan,
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Baker LA, Marchetti B, Karsili TNV, Stavros VG, Ashfold MNR. Photoprotection: extending lessons learned from studying natural sunscreens to the design of artificial sunscreen constituents. Chem Soc Rev 2018; 46:3770-3791. [PMID: 28580469 DOI: 10.1039/c7cs00102a] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Evolution has ensured that plants and animals have developed effective protection mechanisms against the potentially harmful effects of incident ultraviolet radiation (UVR). Tanning is one such mechanism in humans, but tanning only occurs post-exposure to UVR. Hence, there is ever growing use of commercial sunscreens to pre-empt overexposure to UVR. Key requirements for any chemical filter molecule used in such a photoprotective capacity include a large absorption cross-section in the UV-A and UV-B spectral regions and the availability of one or more mechanisms whereby the absorbed photon energy can be dissipated without loss of the molecular integrity of the chemical filter. Here we summarise recent experimental (mostly ultrafast pump-probe spectroscopy studies) and computational progress towards unravelling various excited state decay mechanisms that afford the necessary photostability in chemical filters found in nature and those used in commercial sunscreens. We also outline ways in which a better understanding of the photophysics and photochemistry of sunscreen molecules selected by nature could aid the design of new and improved commercial sunscreen formulations.
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Affiliation(s)
- Lewis A Baker
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.
| | - Barbara Marchetti
- Department of Chemistry, University of Pennsylvania, Philadelphia, USA
| | | | - Vasilios G Stavros
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.
| | - Michael N R Ashfold
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
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Aromadendrene oxide 2, induces apoptosis in skin epidermoid cancer cells through ROS mediated mitochondrial pathway. Life Sci 2018; 197:19-29. [DOI: 10.1016/j.lfs.2018.01.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/20/2018] [Accepted: 01/29/2018] [Indexed: 11/23/2022]
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Baker LA, Clark SL, Habershon S, Stavros VG. Ultrafast Transient Absorption Spectroscopy of the Sunscreen Constituent Ethylhexyl Triazone. J Phys Chem Lett 2017; 8:2113-2118. [PMID: 28437110 DOI: 10.1021/acs.jpclett.7b00633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ultrafast photoprotection mechanisms in operation in ethylhexyl triazone (EHT, octyl triazone), an approved ultraviolet-B (UV-B) chemical filter for commercial sunscreens, remain elusive, with a notable absence of ultrafast time-resolved measurements. These large organic molecules are of increasing interest as they are suspected to be less likely to penetrate the skin than some of the smaller approved filters, thereby reducing the possible adverse effects from sunscreen products. We apply femtosecond transient absorption spectroscopy with electronic structure calculations to unravel the complete photodeactivation mechanism that EHT undergoes after UV-B irradiation. We propose that this involves ultrafast internal conversion of the initially photoexcited n1ππ* state that couples to the ground state via a 11ππ*/S0 conical intersection, enabling multiple absorption and recovery cycles, as one would anticipate from a highly efficient filter. We also observe long-lived photoproducts which, based on previous studies along with present electronic structure calculations, we attribute to trapped excited populations in the S1 and T1 states.
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Affiliation(s)
- Lewis A Baker
- Department of Chemistry and ‡Centre for Scientific Computing, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Sarah L Clark
- Department of Chemistry and ‡Centre for Scientific Computing, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Scott Habershon
- Department of Chemistry and ‡Centre for Scientific Computing, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Vasilios G Stavros
- Department of Chemistry and ‡Centre for Scientific Computing, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
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Rodrigues NDN, Staniforth M, Stavros VG. Photophysics of sunscreen molecules in the gas phase: a stepwise approach towards understanding and developing next-generation sunscreens. Proc Math Phys Eng Sci 2016; 472:20160677. [PMID: 27956888 PMCID: PMC5134319 DOI: 10.1098/rspa.2016.0677] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 10/24/2016] [Indexed: 12/22/2022] Open
Abstract
The relationship between exposure to ultraviolet (UV) radiation and skin cancer urges the need for extra photoprotection, which is presently provided by widespread commercially available sunscreen lotions. Apart from having a large absorption cross section in the UVA and UVB regions of the electromagnetic spectrum, the chemical absorbers in these photoprotective products should also be able to dissipate the excess energy in a safe way, i.e. without releasing photoproducts or inducing any further, harmful, photochemistry. While sunscreens are tested for both their photoprotective capability and dermatological compatibility, phenomena occurring at the molecular level upon absorption of UV radiation are largely overlooked. To date, there is only a limited amount of information regarding the photochemistry and photophysics of these sunscreen molecules. However, a thorough understanding of the intrinsic mechanisms by which popular sunscreen molecular constituents dissipate excess energy has the potential to aid in the design of more efficient, safer sunscreens. In this review, we explore the potential of using gas-phase frequency- and time-resolved spectroscopies in an effort to better understand the photoinduced excited-state dynamics, or photodynamics, of sunscreen molecules. Complementary computational studies are also briefly discussed. Finally, the future outlook of expanding these gas-phase studies into the solution phase is considered.
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O’Keefe SJ, Feltis BN, Piva TJ, Turney TW, Wright PFA. ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cells. Nanotoxicology 2016; 10:1287-96. [DOI: 10.1080/17435390.2016.1206148] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sean J. O’Keefe
- School of Medical Sciences, and Nanosafe Australia, RMIT University, Bundoora, Victoria, Australia and
| | - Bryce N. Feltis
- School of Medical Sciences, and Nanosafe Australia, RMIT University, Bundoora, Victoria, Australia and
- Department of Materials Engineering, Monash University, Clayton, Victoria, Australia
| | - Terrence J. Piva
- School of Medical Sciences, and Nanosafe Australia, RMIT University, Bundoora, Victoria, Australia and
| | - Terence W. Turney
- Department of Materials Engineering, Monash University, Clayton, Victoria, Australia
| | - Paul F. A. Wright
- School of Medical Sciences, and Nanosafe Australia, RMIT University, Bundoora, Victoria, Australia and
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Abstract
Sunscreens form an important modality for cutaneous photoprotection. Sunscreen formulations incorporate many features that provide protection from ultraviolet (UV)-induced carcinogenesis, immunosuppression, and accelerated photoaging. Since the 1920s, when the link between skin cancer and UV radiation was first observed, sunscreen use has become part of our daily routine. Chemical and physical modifications are continuously made to formulations so that they may be more appealing to the general population, especially to those with fair skin. The demand for a formula that is effective in its UV protection while at the same time is adoptable in its application and exposure characteristics is an important consideration in the development of sunscreens. Because of continued development, technological advances, and substantive gains in knowledge on UV-induced photodamage, at present, we are able to produce effective formulations, and although these formulations do not provide total spectrum protection, they are considerably better than sunscreens of the past.
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Affiliation(s)
- Nathalie Provost
- From the Division of Dermatology, University of Montréal Hospital Centre, Montréal, PQ; Department of Dermatology, Memorial University of Newfoundland, St. John's, NF; and Division of Dermatology, Skin Care Centre, Vancouver General Hospital, Vancouver, BC
| | - Ian Landells
- From the Division of Dermatology, University of Montréal Hospital Centre, Montréal, PQ; Department of Dermatology, Memorial University of Newfoundland, St. John's, NF; and Division of Dermatology, Skin Care Centre, Vancouver General Hospital, Vancouver, BC
| | - Stuart Maddin
- From the Division of Dermatology, University of Montréal Hospital Centre, Montréal, PQ; Department of Dermatology, Memorial University of Newfoundland, St. John's, NF; and Division of Dermatology, Skin Care Centre, Vancouver General Hospital, Vancouver, BC
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Abstract
Erythema is a readily visible, often painful, natural phenomenon indicative of prolonged cutaneous exposure to ultraviolet (UV) radiation in the UVB range. As a result, early sunscreens were designed to provide adequate protection from UVB radiation. However, the continuous rise in the melanoma incidence rate alludes to the existence of an established photocarcinogen from which we are not well protected. Recently, scientists have been evaluating the photodamaging effects caused by wavelengths other than UVB. They have presented evidence that suggests that UVA exposure poses a greater hazard than previously acknowledged. For this reason, more emphasis must be placed on the development of broad-spectrum sunscreens providing adequate UVA and UVB protection. Additionally, regular sunscreen application must be advocated, proactive sun-protective practices must be implemented, and greater public awareness of the harmful effects of UVA and UVB radiation must be improved on, with the hope of decreasing the rate of cutaneous malignant melanoma.
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Affiliation(s)
- Robert Bissonnette
- From Innovaderm Research Inc, Montréal, PQ; Centre Hospitalier Universitaire de Québec, Service de Dermatologie, Pavillon-Hôtel-Dieu de Québec, Québec, PQ; Division of Dermatology, Department of Medicine, Sunnybrook and Women's College Health Sciences Centre (Sunnybrook Site); Department of Dermatology, University of Toronto, Toronto, ON; and Mediprobe Research Inc., London, ON
| | - Joel Claveau
- From Innovaderm Research Inc, Montréal, PQ; Centre Hospitalier Universitaire de Québec, Service de Dermatologie, Pavillon-Hôtel-Dieu de Québec, Québec, PQ; Division of Dermatology, Department of Medicine, Sunnybrook and Women's College Health Sciences Centre (Sunnybrook Site); Department of Dermatology, University of Toronto, Toronto, ON; and Mediprobe Research Inc., London, ON
| | - Aditya K. Gupta
- From Innovaderm Research Inc, Montréal, PQ; Centre Hospitalier Universitaire de Québec, Service de Dermatologie, Pavillon-Hôtel-Dieu de Québec, Québec, PQ; Division of Dermatology, Department of Medicine, Sunnybrook and Women's College Health Sciences Centre (Sunnybrook Site); Department of Dermatology, University of Toronto, Toronto, ON; and Mediprobe Research Inc., London, ON
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Schalka S, Steiner D, Ravelli FN, Steiner T, Terena AC, Marçon CR, Ayres EL, Addor FAS, Miot HA, Ponzio H, Duarte I, Neffá J, Cunha JAJD, Boza JC, Samorano LDP, Corrêa MDP, Maia M, Nasser N, Leite OMRR, Lopes OS, Oliveira PD, Meyer RLB, Cestari T, Reis VMSD, Rego VRPDA. Brazilian consensus on photoprotection. An Bras Dermatol 2015; 89:1-74. [PMID: 25761256 PMCID: PMC4365470 DOI: 10.1590/abd1806-4841.20143971] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 10/28/2014] [Indexed: 12/14/2022] Open
Abstract
Brazil is a country of continental dimensions with a large heterogeneity of climates
and massive mixing of the population. Almost the entire national territory is located
between the Equator and the Tropic of Capricorn, and the Earth axial tilt to the
south certainly makes Brazil one of the countries of the world with greater extent of
land in proximity to the sun. The Brazilian coastline, where most of its population
lives, is more than 8,500 km long. Due to geographic characteristics and cultural
trends, Brazilians are among the peoples with the highest annual exposure to the sun.
Epidemiological data show a continuing increase in the incidence of non-melanoma and
melanoma skin cancers. Photoprotection can be understood as a set of measures aimed
at reducing sun exposure and at preventing the development of acute and chronic
actinic damage. Due to the peculiarities of Brazilian territory and culture, it would
not be advisable to replicate the concepts of photoprotection from other developed
countries, places with completely different climates and populations. Thus the
Brazilian Society of Dermatology has developed the Brazilian Consensus on
Photoprotection, the first official document on photoprotection developed in Brazil
for Brazilians, with recommendations on matters involving photoprotection.
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Affiliation(s)
- Sérgio Schalka
- Photobiology Department, Sociedade Brasileira de Dermatologia, São Paulo, SP, Brazil
| | | | | | | | | | | | - Eloisa Leis Ayres
- Center of Dermatology Prof. Rene Garrido Neves, City Health Foundation, Rio de Janeiro, RJ, Brazil
| | | | | | - Humberto Ponzio
- Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ida Duarte
- Charity Hospital, Santa Casa de Misericórdia, São Paulo, SP, Brazil
| | - Jane Neffá
- Fluminense Federal University, Niterói, RJ, Brazil
| | | | | | | | | | - Marcus Maia
- Charity Hospital, Santa Casa de Misericórdia, São Paulo, SP, Brazil
| | - Nilton Nasser
- Federal University of Santa Catarina, Blumenau, SC, Brazil
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Skin cancer and new treatment perspectives: A review. Cancer Lett 2015; 357:8-42. [DOI: 10.1016/j.canlet.2014.11.001] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 10/31/2014] [Accepted: 11/04/2014] [Indexed: 12/25/2022]
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Geetha T, Kapila M, Prakash O, Deol PK, Kakkar V, Kaur IP. Sesamol-loaded solid lipid nanoparticles for treatment of skin cancer. J Drug Target 2014; 23:159-69. [DOI: 10.3109/1061186x.2014.965717] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Duquia RP, Menezes AMB, Almeida HLD, Reichert FF, Santos IDSD, Haack RL, Horta BL. Prevalence of sun exposure and its associated factors in southern Brazil: a population-based study. An Bras Dermatol 2014; 88:554-61. [PMID: 24068126 PMCID: PMC3760930 DOI: 10.1590/abd1806-4841.20132122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 10/04/2012] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Sunlight exposure is responsible for a large number of dermatological diseases.
OBJECTIVE We estimated the prevalence of sunlight exposure and its associated factors in
adults from southern Brazil in a cross-sectional, population-based study. METHODS We investigated a representative sample of individuals aged ≥ 20 years
(n=3,136). Sunlight exposure and its associated factors were evaluated in two
distinct situations: at leisure time and at work. The time period investigated
ranged from December 2004 to March 2005, comprising 120 days of the highest
ultraviolet index in the urban area of the city of Pelotas, in southern Brazil.
The participants were asked about sunlight exposure for at least 20 minutes
between 10 A.M. and 4 P.M. The analysis was stratified by sex, and sunlight
exposure was grouped into five categories. RESULTS Among the 3,136 participants, prevalence of sunlight exposure at the beach was
32.8% (95% CI, 30.3 - 35.2) and 26.3% (95% CI, 24.2 28.3) among men and women,
respectively. The prevalence at work was 39.8% (95% CI, 37.2 - 42.4) among men and
10.5% (95% CI, 9.1 - 12.0) among women. Age was inversely associated with sunlight
exposure. Family income and achieved schooling were positively associated with
sunlight exposure at leisure time and inversely associated with sunglight exposure
at work. Self-reported skin color was not associated. Knowledge of any friend or
relative who has been affected by skin cancer was positively associated with
sunlight exposure among men at work. CONCLUSION Despite the media campaigns on the harmful effects of excessive sunlight exposure,
we found a high prevalence of sunlight exposure during a period of high
ultraviolet index.
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D’Orazio J, Jarrett S, Amaro-Ortiz A, Scott T. UV radiation and the skin. Int J Mol Sci 2013; 14:12222-48. [PMID: 23749111 PMCID: PMC3709783 DOI: 10.3390/ijms140612222] [Citation(s) in RCA: 1053] [Impact Index Per Article: 95.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 05/18/2013] [Accepted: 05/24/2013] [Indexed: 12/14/2022] Open
Abstract
UV radiation (UV) is classified as a "complete carcinogen" because it is both a mutagen and a non-specific damaging agent and has properties of both a tumor initiator and a tumor promoter. In environmental abundance, UV is the most important modifiable risk factor for skin cancer and many other environmentally-influenced skin disorders. However, UV also benefits human health by mediating natural synthesis of vitamin D and endorphins in the skin, therefore UV has complex and mixed effects on human health. Nonetheless, excessive exposure to UV carries profound health risks, including atrophy, pigmentary changes, wrinkling and malignancy. UV is epidemiologically and molecularly linked to the three most common types of skin cancer, basal cell carcinoma, squamous cell carcinoma and malignant melanoma, which together affect more than a million Americans annually. Genetic factors also influence risk of UV-mediated skin disease. Polymorphisms of the melanocortin 1 receptor (MC1R) gene, in particular, correlate with fairness of skin, UV sensitivity, and enhanced cancer risk. We are interested in developing UV-protective approaches based on a detailed understanding of molecular events that occur after UV exposure, focusing particularly on epidermal melanization and the role of the MC1R in genome maintenance.
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Affiliation(s)
- John D’Orazio
- Graduate Center for Toxicology and the Departments of Pediatrics, Biomedical and Molecular Pharmacology and Physiology, Markey Cancer Center, University of Kentucky College of Medicine, 800 Rose Street, Lexington, KY 40536, USA
| | - Stuart Jarrett
- Markey Cancer Center, University of Kentucky College of Medicine, 800 Rose Street, Lexington, KY 40536, USA; E-Mail:
| | - Alexandra Amaro-Ortiz
- Graduate Center for Toxicology, University of Kentucky College of Medicine, 800 Rose Street, Lexington, KY 40536, USA; E-Mail: (A.A.-O.); (T.S.)
| | - Timothy Scott
- Graduate Center for Toxicology, University of Kentucky College of Medicine, 800 Rose Street, Lexington, KY 40536, USA; E-Mail: (A.A.-O.); (T.S.)
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Abstract
Nowadays, concern over skin cancer has been growing more and more, especially in tropical countries where the incidence of UVA/B radiation is higher. The correct use of sunscreen is the most efficient way to prevent the development of this disease. The ingredients of sunscreen can be organic and/or inorganic sun filters. Inorganic filters present some advantages over organic filters, such as photostability, non-irritability and broad spectrum protection. Nevertheless, inorganic filters have a whitening effect in sunscreen formulations owing to the high refractive index, decreasing their esthetic appeal. Many techniques have been developed to overcome this problem and among them, the use of nanotechnology stands out. The estimated amount of nanomaterial in use must increase from 2000 tons in 2004 to a projected 58000 tons in 2020. In this context, this article aims to analyze critically both the different features of the production of inorganic filters (synthesis routes proposed in recent years) and the permeability, the safety and other characteristics of the new generation of inorganic filters.
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Abstract
Photoprotection by sunscreens, clothing and glasses are important to protect the skin against the detrimental effects of sun exposure. In order to achieve complete protection, topical strategies must shield against the range of solar wavelengths ultraviolet A, ultraviolet B, infrared radiation that can damage the skin. To provide the necessary broad spectrum coverage, combinations of chemical and physical UV filters along with molecules that are capable of interfering with and/or preventing the deleterious effects of sunlight are discussed in this review.
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Affiliation(s)
- Reena Rai
- Department of Dermatology, PSG Hospitals, Coimbatore, India
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Bhatia S, Garg A, Sharma K, Kumar S, Sharma A, Purohit AP. Mycosporine and mycosporine-like amino acids: A paramount tool against ultra violet irradiation. Pharmacogn Rev 2012; 5:138-46. [PMID: 22279371 PMCID: PMC3263047 DOI: 10.4103/0973-7847.91107] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Revised: 11/10/2011] [Accepted: 12/23/2011] [Indexed: 11/08/2022] Open
Abstract
Various facts demonstrated that UVB is harmful to organisms. Sunscreen compounds are usually used to prevent the excessive damage caused by UVB. However, certain photosynthetic organisms have evolved mechanisms to counteract the toxicity of ultraviolet radiation by synthesizing UV screening compounds such as mycosporine-like amino acids (MAAs). MAAs provide UV protection to primary and secondary consumers through food chain and to non-biological materials by photostabilizing action. Information related to the ecological consequence of MAAs and their spatial distribution from a wide range of organisms is accumulating. Hence, our studies seek a potent class of natural sun protective compounds to understand their relationship with environment and to develop a protocol for large-scale industrial production of these compounds so that they can find application as UV-protecting cosmetics.
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Affiliation(s)
- Saurabh Bhatia
- Department of Pharmacognosy, P. D. M. College of Pharmacy, Bahadurgarh, Haryana, India
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Bhatia S, Sharma K, Namdeo AG, Chaugule BB, Kavale M, Nanda S. Broad-spectrum sun-protective action of Porphyra-334 derived from Porphyra vietnamensis. Pharmacognosy Res 2011; 2:45-9. [PMID: 21808539 PMCID: PMC3140129 DOI: 10.4103/0974-8490.60578] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 11/10/2009] [Accepted: 03/13/2010] [Indexed: 11/04/2022] Open
Abstract
There are enormous UV-protective compounds present in the current world market, out of which 98% give protection against UV-B range and the remaining 2% are potent against far UV-A range only. Furthermore, these synthetic compounds have various problems related to photo-stability and cross-stability. There is a vital need of sunscreen agents that will remain stable for prolonged periods and provide broad-spectrum protection against harmful UV range. The Indian Ocean contains large amounts of macro-algae which synthesize varied amount of mycosporine amino acids, "sun-protective compounds" by shikmic acid pathway. In the present study, we have evaluated the sunscreen protection provided by Porphyra-334, a mycosporine amino acid isolated from Indian sp. of Porphyra. Furthermore, the isolated compound was detected by high performance thin layer chromatography (HPTLC) fingerprinting, high performance liquid chromatography (HPLC) and ultraviolet (UV), whereas nuclear magnetic resonance (NMR) spectroscopy and infrared spectrometry were used for its structural characterization. Stability studies were performed under different storage and pH conditions. Ultimately a sunscreen formulation was developed and its potential against marketed Aloe vera gel was evaluated by in vitro sunscreen protection method. It was observed that sunscreen potential of Porphyra-334 was 5.11-fold greater than that of the marketed Aloe vera gel preparation.
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Affiliation(s)
- Saurabh Bhatia
- Department of Pharmacognosy, Poona College of Pharmacy, Bharati Vidyapeeth University, Pune, India
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Wan H, Yuan J, Shan X, Wu Q, Shi N. Structure and bio-properties of extracellular polysaccharide from Bacillus sp. strain LBP32 Isolated from LUOBOPO desert. BIOTECHNOL BIOPROC E 2011. [DOI: 10.1007/s12257-010-0456-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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43
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Tock CL, Turner LR, Altiner A, Batra P, Booher SL, Coelho SG, Warner JA, Therrien JP, Turner ML, Miller SA, Beer JZ, Kraemer KH, Udey MC, Vogel JC, Terunuma A. Transcriptional signatures of full-spectrum and non-UVB-spectrum solar irradiation in human skin. Pigment Cell Melanoma Res 2011; 24:972-4. [PMID: 21848663 PMCID: PMC3472957 DOI: 10.1111/j.1755-148x.2011.00899.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christine L. Tock
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Lexa R. Turner
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ahmet Altiner
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Priya Batra
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Susan L. Booher
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sergio G. Coelho
- Center for Devices and Radiological Health, Food and Drug Administration, Rockville, MD, USA
| | - Jennifer A. Warner
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jean-Philippe Therrien
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Maria L. Turner
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sharon A. Miller
- Center for Devices and Radiological Health, Food and Drug Administration, Rockville, MD, USA
| | - Janusz Z. Beer
- Center for Devices and Radiological Health, Food and Drug Administration, Rockville, MD, USA
| | - Kenneth H. Kraemer
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mark C. Udey
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jonathan C. Vogel
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Atsushi Terunuma
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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45
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Wang SQ, Balagula Y, Osterwalder U. Photoprotection: a Review of the Current and Future Technologies. Dermatol Ther 2010; 23:31-47. [PMID: 20136907 DOI: 10.1111/j.1529-8019.2009.01289.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Steven Q Wang
- Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
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UVA and UVB radiation-induced oxidation products of quercetin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2009; 97:123-31. [DOI: 10.1016/j.jphotobiol.2009.08.009] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 08/13/2009] [Accepted: 08/24/2009] [Indexed: 11/20/2022]
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Szklo AS, Almeida LMD, Figueiredo V, Lozana JDA, Azevedo e Silva Mendonça G, Moura LD, Szklo M. [Behaviors related to sunlight exposure versus protection in a random population sample from 15 Brazilian State capitals and the Federal District, 2002-2003]. CAD SAUDE PUBLICA 2008; 23:823-34. [PMID: 17435880 DOI: 10.1590/s0102-311x2007000400010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2005] [Accepted: 10/30/2006] [Indexed: 11/22/2022] Open
Abstract
This article examines region-specific relations between prevalence of protection against sunlight and socio-demographic and behavioral variables in Brazil. Data were derived from a cross-sectional population-based random sample. Information on sunlight exposure was available for a total of 16,999 individuals 15 years and older. Comparing the North and South of Brazil, crude differences between women and men in the use of "sunscreen" and "protective headwear" were +10.9% (95%CI: 7.1; 14.6) and -11.6% (95%CI: -17.0; -6.3) in the North and +21.3% (95%CI: 17.7; 24.9) and -16.0% (95%CI: -20.2; -12.5) in the South. Adjusted differences by selected variables confirmed that women use more sunscreen protection and less headwear protection as compared to men in both the North and South, but the difference was not homogeneous by region (interaction term p value < 0.05).
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Affiliation(s)
- André Salem Szklo
- Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer, Rua dos Inválidos 212, Rio de Janeiro, RJ 20231-020, Brazil.
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Green AC, Williams GM. Point: Sunscreen Use Is a Safe and Effective Approach to Skin Cancer Prevention. Cancer Epidemiol Biomarkers Prev 2007; 16:1921-2. [DOI: 10.1158/1055-9965.epi-07-0477] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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