Cited by 20Skin Protection and AgingPhytochemicals and Antioxidant ActivitiesMedicinal Plant Research

Cecropia obtusa, an Amazonian ethanolic extract, exhibits photochemoprotective effect in vitro and balances the redox cellular state in response to UV radiation

Alves, Georgia de Assis Dias, de Souza, Rebeca Oliveira, Rogez, Hervé, Masaki, Hitoshi, Fonseca, Maria José Vieira·2016·Industrial Crops and Products

Abstract

In order to exhibit photochemoprotective effect a cosmetic formulation is supposed to display both the ability to absorb UVA/UVB radiation and exhibit a biological effect to protect the skin against the damage caused by the radiation. Because animal tests are no longer acceptable for cosmetic development, the present study evaluated the photochemoprotective potential of Cecropia obtusa leaf extract against UVA-induced damage in keratinocytes and explored, in detail, the antioxidant capacity using in vitro systems. The extract exhibited a high antioxidant capacity, particularly towards superoxide radical and singlet oxygen. The EC50 values for DPPH, superoxide radical and singlet oxygen were 1.63μg/mL, 0.34μg/mL and 0.55μg/mL, respectively. In addition, the total polyphenol content and total flavonoid content were 371.5mg of gallic acid equivalent/g and 66.68mg of quercetin equivalent/g, respectively. Through the cell model, the extract was able to protect the UVA radiation-induced damage. For lipid peroxidation and superoxide dismutase activity, the group that was treated for 24h and irradiated in the absence of the extract exhibited better protection than the group that underwent the same treatment and was irradiated in the presence of the extract. The opposite pattern was observed for the reduced glutathione levels, catalase activity and reactive oxygen species formation. In addition to protecting keratinocytes from UVA-induced damage and balancing the redox cellular state,…

Integrity signals

Registry

Crossref · 10.1016/j.indcrop.2016.09.064

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Extracts of Lippia sericea, Cecropia obtusa, Acacia catechu, Brazilian bamboo, and Lasallia pustulata have high SPF values in formulations (SPF = 7-86), with Brazilian bamboo most promising at SPF 44 after irradiation.

    “The other extracts revealed to possess a complex mixture of compounds, namely a high content of phenols [102,105] and polyphenols [103] and high SPF values in formulations (SPF = 7–86) [102,103,104,105,106], being the extract of Brazilian bamboo species the most promising with a SPF value of 44, after irradiation [105].”

    From UV Filters: Challenges and Prospects (2022) · cites this paper as [103]

  • A greater number of phenolic constituents in extracts is related to antioxidant activity.

    “Furthermore, a relation between the presence of a greater number of phenolic constituents in the extracts and the antioxidant activity was detected [102,103,104].”

    From UV Filters: Challenges and Prospects (2022) · cites this paper as [103]

  • Cecropia obtusa leaves extract has DPPH, superoxide, and singlet oxygen scavenging capacity (IC50 1.63, 0.34, 0.55 μg/mL) and maintains ROS equilibrium in HaCaT cells.

    “Regarding leaves extract of Cecropia obtusa, it was demonstrated promising DPPH radical, superoxide radical, and singlet oxygen scavenging capacity (IC50 values of 1.63 µg/mL, 0.34 µg/mL, and 0.55 µg/mL, respectively), and the ability of maintaining the reactive oxygen species (ROS) species’ equilibrium in HaCaT cells [103].”

    From UV Filters: Challenges and Prospects (2022) · cites this paper as [103]

  • Ethanolic extract of Amazonian Cecropia obtusa leaves has a sun protection factor (SPF) of 16.

    “effect of C. obtusa leaves extract at 20 µg/mL (SPF = 16) without cytotoxic effect in keratinocyte HaCaT cell line [103].”

    From UV Filters: Challenges and Prospects (2022) · cites this paper as [103]

  • Ethanolic extract of Amazonian Cecropia obtusa leaves at 20 μg/mL has no cytotoxic effect in the HaCaT keratinocyte cell line.

    “effect of C. obtusa leaves extract at 20 µg/mL (SPF = 16) without cytotoxic effect in keratinocyte HaCaT cell line [103].”

    From UV Filters: Challenges and Prospects (2022) · cites this paper as [103]

Cites

Flagged first, then by citations

3 of the 51 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Alves, G. D. A. D., de Souza, R. O., Rogez, H., Masaki, H., & Fonseca, M. J. V.
Affiliations
  • Tokyo University of Technology (JP)
  • Universidade de São Paulo (BR)
Corresponding author
Fonseca, Maria José Vieira
Venue
Industrial Crops and Products
Publisher
Elsevier BV
Published
2016-12
Volume
94
Pages
893-902
ISSN
0926-6690 (ISSN-L)
OpenAlex
W2529407431
Cited by
20
References
51
Citations by year
2024: 1 · 2023: 1 · 2022: 2 · 2021: 4 · 2020: 1 · 2019: 4 · 2018: 1 · 2017: 6
FWCI
4.40
Type
journal article
Language
en
Open access
closed
Locations
Industrial Crops and Products (publishedVersion)
Funders
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Fundação de Amparo a Pesquisa do Estado de São Paulo
  • Fundo da Amazônia
  • Brazilian Genetic Heritage Management Council (010526/2015-3)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Medicinal Plant Research
Keywords
ethanolic leaf extract, UVA, keratinocytes, antioxidant capacity, superoxide, singlet oxygen, lipid peroxidation, redox homeostasis, polyphenols, flavonoids, UV filters, cosmetic formulation, oxidative damage

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review