Protective effect of oral treatment with Cordia verbenacea extract against UVB irradiation deleterious effects in the skin of hairless mouse

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Photochemoprotection of the skin can be achieved by inhibiting inflammation and oxidative stress, which we tested using Cordia verbenacea extract, a medicinal plant known for its rich content of antioxidant molecules and anti-inflammatory activity. In vitro antioxidant evaluation of Cordia verbenacea leaves ethanolic extract (CVE) presented the following results: ferric reducing antioxidant power (886.32 μM equivalent of Trolox/g extract); IC50 of 19.128 μg/ml for scavenging 2,2-diphenyl-1-picrylhydrazyl; IC50 of 12.48 μg/mL for scavenging 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid); decrease of hydroperoxides from linoleic acid (IC50 of 10.20 μg/mL); inhibition of thiobarbituric acid reactive substances (IC50 8.90 μg/mL); iron-chelating ability in bathophenanthroline iron assay (IC50 47.35 μg/mL); chemiluminescence triggered by free radicals in the H2O2/horseradish peroxidase/luminol (IC50 0.286 μg/mL) and xanthine/xanthine oxidase/luminol (IC50 0.42 μg/mL) methods. CVE (10-100 mg per kg, 30 min before and immediately after UVB exposure) treatment was performed by gavage in hairless mice. CVE inhibited skin edema, neutrophil infiltration, and overproduction of MMP-9; reduced levels of TNF-α, IL-1β, and IL- 6; numbers of skin mast cells, epidermal thickening, number of epidermal apoptotic keratinocytes, and collagen degradation. CVE increased the skin's natural antioxidant defenses as observed by Nrf-2, NAD(P)H quinone oxidoreductase 1, and heme oxygenase 1 mRNA expression enhancement. Furthermore, CVE inhibited lipid peroxidation and superoxide anion production and recovered antioxidant reduced glutathione, catalase activity, and ROS scavenging capacity of the skin. Concluding, CVE downregulates the skin inflammatory and oxidative damages triggered by UVB, demonstrating its potentialities as a therapeutic approach.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:216

Enthalten in:

Journal of photochemistry and photobiology. B, Biology - 216(2021) vom: 09. März, Seite 112151

Sprache:

Englisch

Beteiligte Personen:

Melo, Cristina P B [VerfasserIn]
Saito, Priscila [VerfasserIn]
Vale, David L [VerfasserIn]
Rodrigues, Camilla C A [VerfasserIn]
Pinto, Ingrid C [VerfasserIn]
Martinez, Renata M [VerfasserIn]
Bezerra, Julia Rojo [VerfasserIn]
Baracat, Marcela M [VerfasserIn]
Verri, Waldiceu A [VerfasserIn]
Fonseca-Bazzo, Yris Maria [VerfasserIn]
Georgetti, Sandra R [VerfasserIn]
Casagrande, Rubia [VerfasserIn]

Links:

Volltext

Themen:

11062-77-4
9KJL21T0QJ
Anti-Inflammatory Agents
Antioxidants
BBX060AN9V
Cytokines
EC 1.14.14.18
EC 1.6.99.-
Flavonoids
Heme Oxygenase-1
Hydrogen Peroxide
Inflammation
Journal Article
Linoleic Acid
NF-E2-Related Factor 2
Nrf2
Phenolic compounds
Plant Extracts
Protective Agents
Quinone Reductases
Rosmarinic acid
Superoxides

Anmerkungen:

Date Completed 07.07.2021

Date Revised 26.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jphotobiol.2021.112151

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM321413288