4.3 Article

The Hair Growth-Promoting Effect of Gardenia florida Fruit Extract and Its Molecular Regulation

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HINDAWI LTD
DOI: 10.1155/2022/8498974

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  1. Natural Science Research Project of Anhui Education Department [KJ2020A0067]
  2. Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes
  3. Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources

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This study was the first to investigate the effects of Gardenia florida fruit extract (GFFE) on hair growth. Both in vitro and in vivo experiments were conducted to examine the effects of GFFE on human dermal papilla cells (hDPCs) and C57BL/6 mice. The results showed that GFFE promoted cell proliferation, stimulated hair growth-promoting genes, and suppressed hair loss-related genes. Additionally, GFFE treatment increased the number, size, and depth of hair follicles in mice.
As a herbal medicine, the extract from the fruits of Gardenia florida has been widely used for its antioxidative, hypoglycemic, and anti-inflammatory properties. However, whether G. florida fruit extract (GFFE) regulates hair growth has been rarely studied. This study was the first application of GFFE on hair growth both in vitro (human dermal papilla cells, hDPCs) and in vivo (C57BL/6 mice).,The effects of GFFE on cell proliferation and hair growth-associated gene expression in hDPCs were examined. Moreover, GFFE was applied topically on the hair-shaved skin of male C57BL/6 mice, the hair length was measured, and the skin histological profile was investigated. GFFE promoted the proliferation of hDPCs and significantly stimulated hair growth-promoting genes, including vascular endothelial growth factor (VEGF) and Wnt/-beta catenin signals, but suppressed the expression of the hair loss-related gene transforming growth factor-beta 1 (TGF-beta). Furthermore, GFFE treatment resulted in a significant increase in the number, size, and depth of cultured hair follicles and stimulated the growth of hair with local effects in mice. In summary, the results provided the preclinical data to support the much potential use of the natural product GFFE as a promising agent for hair growth.

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