alexa The effect of CD34+ cell-containing autologous platelet-rich plasma injection on pattern hair loss: a preliminary study.
Biomedical Sciences

Biomedical Sciences

Biology and Medicine

Author(s): Kang JS, Zheng Z, Choi MJ, Lee SH, Kim DY,

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Abstract BACKGROUND: Mobilized CD34+ cells in peripheral blood have angiogenic potential, which is an important factor in active hair growth. In addition, activated autologous platelet-rich plasma (PRP) has been reported to induce the proliferation of dermal papilla cells. OBJECTIVES: To investigate the clinical efficacy of interfollicular injection of CD34+ cell-containing PRP preparation for pattern hair loss. PATIENTS AND METHODS: CD34+ cell-containing PRP preparation was injected on the scalps of 13 patients with pattern hair loss, and 13 patients were treated with interfollicular placental extract injection as a control. The numbers of platelets in PRP were microscopically counted and CD34+ cells were evaluated with flow cytometry. RESULTS: Three months after the first treatment, the patients presented clinical improvement in the mean number of hairs, 20.5 ± 17.0\% (P < 0.0001), mean hair thickness, 31.3 ± 30.1\% (P < 0.0001), and mean two-point score, 84.4 ± 51.7\% (P < 0.0001) compared with baseline values. At 6 months, the patients presented clinical improvement in mean hair count, 29.2 ± 17.8\% (P < 0.0001), mean hair thickness, 46.4 ± 37.5\% (P < 0.0001), and mean two-point score, 121.3 ± 66.8\% (P < 0.0001) compared with baseline. The MIXED procedure revealed that CD34+ cell-containing PRP treatment presented a higher degree of improvement than placental extract treatment in hair thickness (P = 0.027) and overall clinical improvement (P = 0.023). CONCLUSION: Our data suggest that the interfollicular injection of autologous CD34+ cell-containing PRP preparation has a positive therapeutic effect on male and female pattern hair loss without remarkable major side-effects. © 2012 The Authors. Journal of the European Academy of Dermatology and Venereology © 2012 European Academy of Dermatology and Venereology. This article was published in J Eur Acad Dermatol Venereol and referenced in Biology and Medicine

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