Potential Mechanisms of Minoxidil-Induced Hair Growth in Alopecia Areata

March 1987 in “ Journal of the American Academy of Dermatology ”

Virginia C. Fiedler‐Weiss

minoxidil alopecia areata follicular epithelium perifollicular vessels lymphocytes vasodilatory properties cell proliferation immune responses Rogaine

From the encyclopedia

Minoxidil →

An essential vasodilator with some anti-androgenic effects

Alopecia Areata →

autoimmune disorder causing patchy hair loss

Studysummary This study suggests that topical minoxidil may aid hair regrowth in alopecia areata through synergistic effects on follicular epithelium and lymphocyte-mediated immunological responses, alongside its vasodilatory properties.

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The study explored the mechanisms by which topical minoxidil induced hair growth in alopecia areata. It was found that minoxidil led to changes in the follicular epithelium, reduced tissue lymphocyte populations, and increased peripheral blood lymphocyte counts. It also reopened previously closed perifollicular vessels. In vitro, minoxidil increased cell proliferation in murine epithelial cells and suppressed mitogen-induced blast transformation in human lymphocytes. The study suggested that minoxidil promoted hair regrowth through a combination of stimulating follicular epithelium and suppressing lymphocyte-mediated immune responses, with its vasodilatory properties also playing a role.

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Research cited in this study

5 / 5 results

research Topical Minoxidil Dose-Response Effect in Alopecia Areata

54 citations , February 1986 in “Archives of Dermatology”

This study found that 5% topical minoxidil solution led to greater hair regrowth in severe alopecia areata patients compared to 1% minoxidil, although most regrowth was not cosmetically acceptable.

research Alopecia Areata Treated With Topical Minoxidil

78 citations , April 1984 in “Archives of Dermatology”

This study found that 1% minoxidil topical solution led to terminal hair regrowth in some patients with alopecia areata, though it was only cosmetically acceptable in less than half of those cases.

research Direct Effects of Minoxidil on Epidermal Cells in Culture

63 citations , January 1984 in “Journal of Investigative Dermatology”

Minoxidil promotes hair growth by increasing cell division and DNA synthesis.

research Topical Minoxidil in the Treatment of Alopecia Areata

80 citations , October 1983 in “BMJ”

This study found that 1% topical minoxidil induced significant hair regrowth in patients with alopecia areata, though it was less effective for those with extensive hair loss such as alopecia totalis and universalis.

research Topical Minoxidil in Alopecia Areata

56 citations , August 1981 in “Journal of The American Academy of Dermatology”

Minoxidil helps hair regrowth in alopecia areata safely.