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Sundar M, Lingakumar K. Investigating the efficacy of topical application of Ipomoea carnea herbal cream in preventing skin damage induced by UVB radiation in a rat model. Heliyon 2023; 9:e19161. [PMID: 37662739 PMCID: PMC10472012 DOI: 10.1016/j.heliyon.2023.e19161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/28/2023] [Accepted: 08/14/2023] [Indexed: 09/05/2023] Open
Abstract
Ultraviolet-B irradiation is a common environmental stressor that has detrimental effects on human skin. Natural sunscreens are well-known for their ability to benefit inflamed sunburn and dry skin. This study examined the effect of formulated Ipomoea carnea herbal cream on UVB-induced skin damage. We screened the bioactive compounds of I. carnea crude extract, showing significant antioxidant activity. Additionally, we evaluated the cytotoxicity, revealing that I. carnea extract has less toxicity to vero cells (IC50 98.45 μg/mL) than to A375 cells (IC50 48.95 μg/mL). Based on this, we formulated the I. carnea herbal cream (FIHC) at 50, 100 and 200 mg concentrations and evaluated its organoleptic characteristics. Then, the rats were exposed to UVB radiation (32,800 J/m2) four times/week (on alternate days) before the cream was applied topically to the dorsal skin surface. Under UVB stress without treatment, rats showed deep dermal damage. In contrast, rats treated with the FIHC exhibited significantly reduced sunburn. Moreover, the histopathological and biochemical assays were confirmed by the topical application of FIHC, which had potentially reduced the skin elasticity and maintained the imbalanced enzyme and non-enzymatic antioxidant activity. Our findings amply demonstrate that the FIHC significantly accelerated the recovery of UVB-induced lesions through antioxidant and down-regulation of skin photodamage.
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Affiliation(s)
- Madasamy Sundar
- Centre for Research and Postgraduate Studies in Botany, Ayya Nadar Janaki Ammal College, Affiliated to Madurai Kamaraj University, Madurai, Sivakasi, Tamil Nadu, 626124, India
| | - Krishnasamy Lingakumar
- Centre for Research and Postgraduate Studies in Botany, Ayya Nadar Janaki Ammal College, Affiliated to Madurai Kamaraj University, Madurai, Sivakasi, Tamil Nadu, 626124, India
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Melo CPB, Saito P, Martinez RM, Staurengo-Ferrari L, Pinto IC, Rodrigues CCA, Badaro-Garcia S, Vignoli JA, Baracat MM, Bussmann AJC, Georgetti SR, Verri WA, Casagrande R. Aspirin-Triggered Resolvin D1 (AT-RvD1) Protects Mouse Skin against UVB-Induced Inflammation and Oxidative Stress. Molecules 2023; 28:molecules28052417. [PMID: 36903662 PMCID: PMC10005614 DOI: 10.3390/molecules28052417] [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: 12/31/2022] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
Intense exposure to UVB radiation incites excessive production of reactive oxygen species (ROS) and inflammation. The resolution of inflammation is an active process orchestrated by a family of lipid molecules that includes AT-RvD1, a specialized proresolving lipid mediator (SPM). AT-RvD1 is derived from omega-3, which presents anti-inflammatory activity and reduces oxidative stress markers. The present work aims to investigate the protective effect of AT-RvD1 on UVB-induced inflammation and oxidative stress in hairless mice. Animals were first treated with 30, 100, and 300 pg/animal AT-RvD1 (i.v.) and then exposed to UVB (4.14 J/cm2). The results showed that 300 pg/animal of AT-RvD1 could restrict skin edema, neutrophil and mast cell infiltration, COX-2 mRNA expression, cytokine release, and MMP-9 activity and restore skin antioxidant capacity as per FRAP and ABTS assays and control O2•- production, lipoperoxidation, epidermal thickening, and sunburn cells development. AT-RvD1 could reverse the UVB-induced downregulation of Nrf2 and its downstream targets GSH, catalase, and NOQ-1. Our results suggest that by upregulating the Nrf2 pathway, AT-RvD1 promotes the expression of ARE genes, restoring the skin's natural antioxidant defense against UVB exposition to avoid oxidative stress, inflammation, and tissue damage.
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Affiliation(s)
- Cristina P. B. Melo
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Priscila Saito
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Renata M. Martinez
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Larissa Staurengo-Ferrari
- Department of Pathology, Centre of Biological Sciences, Londrina State University, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, Londrina 86057-970, PR, Brazil
- Department of Immunology, Harvard Medical School, Blavatnik Institute, Boston, MA 02115, USA
| | - Ingrid C. Pinto
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Camilla C. A. Rodrigues
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Stephanie Badaro-Garcia
- Department of Pathology, Centre of Biological Sciences, Londrina State University, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, Londrina 86057-970, PR, Brazil
- Department of Medicine, Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Josiane A. Vignoli
- Department of Biochemistry and Biotechnology, Centre of Exact Sciences, Londrina State University, Londrina 86057-970, PR, Brazil
| | - Marcela M. Baracat
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Allan J. C. Bussmann
- Department of Pathology, Centre of Biological Sciences, Londrina State University, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, Londrina 86057-970, PR, Brazil
| | - Sandra R. Georgetti
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
| | - Waldiceu A. Verri
- Department of Pathology, Centre of Biological Sciences, Londrina State University, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, Londrina 86057-970, PR, Brazil
- Correspondence: (W.A.V.); (R.C.)
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86038-350, PR, Brazil
- Correspondence: (W.A.V.); (R.C.)
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