Alopecia and platelet-derived therapies

Area of Science:

• Regenerative Medicine
• Dermatology
• Hair Restoration Surgery

Background:

• Platelet-rich plasma (PRP) is a promising therapy for androgenetic alopecia (AGA).
• Current PRP protocols for hair restoration use potentially harmful activators.
• Combining PRP with hair restoration surgery needs further investigation.

Purpose of the Study:

• To evaluate platelet-derived products as adjuncts in hair restoration surgery.
• To compare the efficacy of platelet lysate (PL) versus activated PRP (AA-PRP) in promoting follicular regeneration.

Main Methods:

• PL was applied to frontal scalp grafts in AGA patients.
• Treatment zones received PL, AA-PRP, or saline.
• Follicular regeneration and hair density were quantified post-surgery.
• Growth factor concentrations in PL and AA-PRP were measured.

Main Results:

• PL demonstrated superior follicular regeneration rates compared to AA-PRP and saline.
• At 3.5 months, PL showed 89% regeneration vs. 74% for AA-PRP and 57% for saline.
• One patient receiving PL alone experienced a 50% increase in follicular unit density and 122% in hair density.
• PL exhibited higher concentrations of VEGF, PDGF-BB, and TGF-β1 than AA-PRP.

Conclusions:

• PRP is a viable therapy for hair loss and can augment surgical procedures.
• Platelet lysate (PL) is an effective product, obtainable through mechanical means (sonication).
• Further research into PL for hair restoration is warranted.