Photodegradation of (-)-epigallocatechin-3-gallate in topical cream formulations and its photostabilization.

@article{Bianchi2011PhotodegradationO,
  title={Photodegradation of (-)-epigallocatechin-3-gallate in topical cream formulations and its photostabilization.},
  author={Anna Bianchi and Nicola Marchetti and Santo Scalia},
  journal={Journal of pharmaceutical and biomedical analysis},
  year={2011},
  volume={56 4},
  pages={
          692-7
        }
}
Comparative Evaluation of Different Co-Antioxidants on the Photochemical- and Functional-Stability of Epigallocatechin-3-gallate in Topical Creams Exposed to Simulated Sunlight
TLDR
It is demonstrated that α-lipoic acid is an effective co-antioxidant agent for the stabilization of EGCG in dermatological products for skin photoprotection.
In vivo human skin penetration of (–)-epigallocatechin-3-gallate from topical formulations
TLDR
The emulsion represents a suitable vehicle for topical delivery of EGCG and permeated into the deeper region of human stratum corneum was significantly larger for the o/w emulsion compared to the gel.
The Effect of Ultrasound, Oxygen and Sunlight on the Stability of (−)-Epigallocatechin Gallate
TLDR
EGCG aqueous solution has the potential to be used through an ultrasonic dental scaler to treat periodontal infection in the future, and was found that the stability of EGCG was concentration-dependent in water at room temperature.
The Phototoxic Potential of the Flavonoids, Taxifolin and Quercetin
TLDR
Quercetin showed a dose‐dependent photodegradation in aqueous and organic environments and a phototoxic effect on all used cells and its dihydro derivative, taxifolin, was found completely nonphototoxic and photostable.
Development and characterization of a self-double-emulsifying drug delivery system containing both epigallocatechin-3-gallate and α-lipoic acid
TLDR
Investigation of a self-double-emulsifying drug delivery system loaded with epigallocatechin-3-gallate (EGCG) and α-lipoic acid to improve EGCG photostability and possess a sustained release behavior found it to be stable under simulated sunlight for 1 month and provided protection for 3t3 fibroblasts that underwent H2O2 oxidative stress due to sustained release property.
Investigation of the Effect of Different Emulsifiers on the Transdermal Delivery of EGCG Entrapped in a Polymeric Micelle System.
TLDR
The skin permeability study evidenced a significant increase in epigallocatechin gallate permeation after encapsulation in micelles, and the epigAllocatechinGallate release and human skin permeation were affected by the type of emulsifier.
Development of O/W emulsions containing Euterpe oleracea extract and evaluation of photoprotective efficacy
Euterpe oleracea Mart. is a palm tree popularly known as acai, which is primarily found in northern Brazil. The acai's fruits contain anthocyanins, a class of polyphenols to which antioxidant
Ultraviolet B (UVB) Photosensitivities of Tea Catechins and the Relevant Chemical Conversions
TLDR
The 2,2-diphenylpicrylhydrazyl scavenging abilities of eight catechins did not change upon 6 h UVB irradiation and photolysis reaction involved two pathways, including radical reaction and photo-induced electron transfer reaction.
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Catechins, a group of highly efficient antioxidants, are found in extracts from green tea in concentrations up to 30 %. Although catechins rapidly decompose in aqueous media they are gaining interest
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EGCG treatment reduced UVA-induced skin damage (roughness and sagginess) and protected from the decrease of dermal collagen in hairless mouse skin and blocked the UV-induced increase of collagen secretion and collagenase mRNA level in fibroblast culture.
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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