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Enhancing hair growth in male androgenetic alopecia by a combination of fractional CO2 laser therapy and hair growth factors

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Abstract

Laser therapy and growth factors have been used as alternative treatments for male androgenetic alopecia (MAA). The aim of this study is to determine the efficacy and safety of hair growth factors alone or combined with ablative carbon dioxide (CO2) fractional laser therapy in MAA. Twenty-eight men were enrolled in this randomized half-split study based on a left-head to right-head pattern. Fractional CO2 laser treatment was unilaterally performed; hair growth factors were bilaterally applied. Six sessions with 2-week intervals were performed. Global photographs and dermoscopy assessments were performed at the baseline and 4 months after first treatment. Global photographs underwent blinded review by three independent dermatologists. Scanning electron microscopy was used to compare changes in hair-follicle phase and hair-shaft diameter. Twenty-seven participants completed the 4-month treatment schedule. One patient was lost. Mean hair density increased from 114 ± 27 to 143 ± 25/cm2 (P < 0.001) in the combined group and from 113 ± 24 to 134 ± 19/cm2 in the growth factor group (P < 0.001). The mean change from baseline between two groups was also compared (P = 0.003). Global photographs showed improvement in 93% (25/27) patients in the combined group and 67% (18/27) patients in the growth factor group. Under scanning electron microscopy, hair follicles appeared to transition from telogen to anagen, and hair-shaft diameter increased in five randomly selected patients. Ablative fractional CO2 laser combined with hair growth factors may serve as an alternative treatment for MAA in individuals unwilling/unable to undergo medical or surgical treatment.

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Author notes

  1. Yue Huang and Fenglin Zhuo contributed equally to this article as the co-first authors.

Authors and Affiliations

  1. Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China

    Yue Huang, Fenglin Zhuo & Linfeng Li

  2. Department of Dermatology, The First Affiliated Hospital of Xiamen University, Xiamen, 361002, China

    Yue Huang

Authors
  1. Yue Huang
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  2. Fenglin Zhuo
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  3. Linfeng Li
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Corresponding author

Correspondence to Linfeng Li.

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Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the Beijing Friendship Hospital, Capital Medical University research committee and with the declaration of Helsinki.

Funding

This study was funded by the Beijing Natural Science Foundation (grant number 7,152,040).

Conflict of interest

The authors declare that they have no conflict of interest.

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Huang, Y., Zhuo, F. & Li, L. Enhancing hair growth in male androgenetic alopecia by a combination of fractional CO2 laser therapy and hair growth factors. Lasers Med Sci 32, 1711–1718 (2017). https://doi.org/10.1007/s10103-017-2232-8

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  • DOI: https://doi.org/10.1007/s10103-017-2232-8

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