March 2016 in “West Indian medical journal” This study found no statistically significant relationship between androgenic alopecia and the PON1 ML55 and QR192 genetic polymorphisms, despite a higher frequency of the PON 55 L allele in patients.
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November 2007 in “American Journal of Pathology” In this study, researchers found that substance P triggered premature catagen development and immune changes in human scalp hair follicles, providing a possible biological link between stress and hair loss conditions like telogen effluvium and alopecia areata.
April 2017 in “Journal of Investigative Dermatology” This study suggests that mutation-targeted siRNA therapy could potentially treat keratitis-ichthyosis-deafness syndrome by selectively reducing harmful GJB2 mutant gene expression in patient-derived keratinocytes.
November 2025 in “Cosmetics” This study found that of the many ingredients advertised in shampoos as effective against hair loss, only caffeine, adenosine, placental proteins, and melatonin have limited clinical evidence supporting their efficacy, with most claimed active ingredients lacking any trial-based validation.
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January 2019 in “Medizinische Genetik” Among families with pediatric brain disease, this study identified over 200 novel genetic causes, revealing potential treatment points using drug repurposing or nutritional supplementation.
