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Azuma K, Koizumi R, Izawa H, Morimoto M, Saimoto H, Osaki T, Ito N, Yamashita M, Tsuka T, Imagawa T, Okamoto Y, Inoue T, Ifuku S. Hair growth-promoting activities of chitosan and surface-deacetylated chitin nanofibers. Int J Biol Macromol 2018; 126:11-17. [PMID: 30576733 DOI: 10.1016/j.ijbiomac.2018.12.135] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/30/2018] [Accepted: 12/16/2018] [Indexed: 12/20/2022]
Abstract
In this study, the effects of chitosan and surface-deacetylated chitin nanofibrils (SDACNFs) on hair growth were evaluated. In human follicle dermal papilla cells in vitro, chitosan and SDACNFs were shown to increase cell growth on day 3 after the initiation of treatment, together with an increase in the production of fibroblast growth factor-7 (FGF-7) by these cells on day 3. Furthermore, in an in vivo study in mice, chitosan and SDACNF application promoted hair growth. The number of anagen follicles significantly increased compared with that in the control group, whereas the number of telogen follicles significantly decreased in the chitosan and SDACNF groups. In the chitosan and SDACNFs groups, moreover, the expression levels of FGF-7 and Sonic hedgehog were significantly upregulated in hair follicles. Overall, our results demonstrated that chitosan and SDACNFs promoted hair growth and therefore may have applications as novel therapeutic agents for the treatment of hair loss in patients.
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Affiliation(s)
- Kazuo Azuma
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Ryo Koizumi
- Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan.
| | - Hironori Izawa
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Minoru Morimoto
- Division of Instrumental Analysis, Research Center for Bioscience and Technology, Tottori University, 4-101 Koyama-minami, Tottori 680-8550, Japan.
| | - Hiroyuki Saimoto
- Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan.
| | - Tomohiro Osaki
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Norihiko Ito
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Masamichi Yamashita
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Takeshi Tsuka
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Tomohiro Imagawa
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Yoshiharu Okamoto
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Tadashi Inoue
- Marine Nano-fiber Co., Ltd., 4-101 Koyama-minami, Tottori 680-8552, Japan.
| | - Shinsuke Ifuku
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan; Marine Nano-fiber Co., Ltd., 4-101 Koyama-minami, Tottori 680-8552, Japan.
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Seo HS, Lee DJ, Chung JH, Lee CH, Kim HR, Kim JE, Kim BJ, Jung MH, Ha KT, Jeong HS. Hominis Placenta facilitates hair re-growth by upregulating cellular proliferation and expression of fibroblast growth factor-7. Altern Ther Health Med 2016; 16:187. [PMID: 27386946 PMCID: PMC4936247 DOI: 10.1186/s12906-016-1180-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 06/15/2016] [Indexed: 01/07/2023]
Abstract
Background Hominis Placenta (HP) known as a restorative medicine in Traditional Chinese Medicine (TCM), has been widely applied in the clinics of Korea and China as an anti-aging agent to enhance the regeneration of tissue. This study was conducted to investigate whether topical treatment of HP promotes hair regrowth in the animal model. Methods The dorsal hairs of 8-week-old C57BL/6 mice were depilated to synchronize hair follicles to the anagen phase. HP was applied topically once a day for 15 days. Hair growth was evaluated visually and microscopically. The incorporation of bromodeoxyuridine (BrdU) and expression of proliferating cell nuclear antigen (PCNA), fibroblast growth factor-7 (FGF-7) in dorsal skin tissue was examined by immunohistochemical analysis. Reverse transcription polymerase chain reaction (RT-PCR) was used to measure the mRNA expression of FGF-7. Results HP exhibited potent hair growth-promoting activity in C57BL/6 mice. Gross examination indicated that HP markedly increased hair regrowth as well as hair density and diameter. Histologic analysis showed that HP treatment enhanced the anagen induction of hair follicles. Immunohistochemical analysis revealed that BrdU incorporation and the expressions of PCNA were increased by treatment of HP. HP treatment significantly increased the expression of FGF-7, which plays pivotal roles to maintain anagen phase both protein and mRNA levels. Conclusions Taken together, our results indicate that HP has a potent hair growth-promoting activity; therefore, it may be a good candidate for the treatment of alopecia.
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