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China Surfactant Detergent & Cosmetics ›› 2024, Vol. 54 ›› Issue (11): 1347-1354.doi: 10.3969/j.issn.2097-2806.2024.11.008

• Development and application • Previous Articles     Next Articles

Protective effect of snow chrysanthemum and Aloe vera alcoholic extract on photodamage of skin in mice caused by UVB

Yang Li1,Youhang Shi1,Qingyao Lv1,Hongyan Jiao2,Shirong Jiao1,*()   

  1. 1. College of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China
    2. Yuanmou County Fengyu Agricultural Industry Development Co., Ltd., Xiongchu Yi Autonomous Prefecture, Yunnan 651300, China
  • Received:2023-11-09 Revised:2024-11-06 Online:2024-11-22 Published:2024-12-02
  • Contact: E-mail: 3435997108@qq.com.

Abstract:

Snow chrysanthemum and Aloe vera have great potential to protect the skin from photodamage. In this paper, we investigated the protective effects of ethanolic extracts of snow chrysanthemum and Aloe vera against outdoor UVB-induced skin photodamage in mice. According to the experimental requirements, the mice were divided into a normal control group (NC group), a model control group (MC group), a snow chrysanthemum alcoholic extract group (SCAE group), a Aloe vera alcoholic extract group (AVAE group), and a snow chrysanthemum and Aloe vera alcoholic extract group (SCAE+AVAE group). In order to reveal the protective mechanism of alcoholic extract against photodamage in mouse skin, antioxidant indexes, hydroxyproline (HYP) content and serum-associated inflammatory factors in damaged skin were determined in mice. The results show that all three intervention groups significantly improve UVB-induced skin appearance in mice compared to the MC group. By hematoxylin-eosin staining (HE), it indicates that the SCAE+AVAE and SCAE are more effective than the AVAE, and the mice have healthier and more elastic skin. The three intervention groups also reduce UVB-induced oxidative stress damage in mice skin, and the malondialdehyde (MDA) content of the SCAE+AVAE group is only (28.18±4.25) nmol/mgprot, which is significantly lower than that of the other groups. The activities of three antioxidant enzymes: catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) are also significantly higher in the SCAE+AVAE group. The SCAE+AVAE group is more effective than the alcoholic extract alone group, and the HYP content reaches (4.12±0.18) μg/mg. All three intervention groups can down-regulate the content of inflammatory factors and inhibit the inflammatory response, among which the SCAE+AVAE group is more effective. And the application of SCAE+AVAE reduces the activities of interleukin-1 (IL-1), interleukin-6 (IL-6) and tumour necrosis factor-α (TNF-α) by 38.93%, 43.31% and 46.34%, respectively. Notably, the effect of the combined extracts is much greater than that of the extracts singly at the same dose. This study reveals the synergistic protective effect of SCAE+AVAE in the treatment of UV-induced photodamage, which is promising for skin care and cosmetic applications.

Key words: snow chrysanthemum, Aloe vera, UVB irradiation, skin photodamage, synergistic effect

CLC Number: 

  • TQ658