May 2026 in “International Journal of Drug Delivery Technology” This source describes how androgenic alopecia, or pattern hair loss, affects about 70% of men and is linked to factors like stress, hormonal imbalances, and lifestyle issues, which can also impact psychological well-being and potentially contribute to severe health conditions such as heart disease.
April 2024 in “Advances in Redox Research” In this study, researchers found that polysulfides in human hair keratin contribute to hair strength and antioxidant capacity, with sulfur supplementation enhancing hair strength and cuticle structure amid oxidative stresses such as UV radiation.
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December 1986 in “The journal of cell biology/The Journal of cell biology” This study found that specific human hair keratins are differentially expressed in the hair follicle, suggesting a shared pathway of epithelial differentiation between hair cortex and nail plate cells.
June 2023 in “Journal of Biological Chemistry” In this study, the authors identified and characterized the Get3d protein, conserved across plants and photosynthetic bacteria, which localizes to the chloroplast in Arabidopsis thaliana and potentially plays a role in tail-anchored protein targeting, linked to photosynthesis homeostasis.
67 citations
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December 1990 in “The journal of cell biology/The Journal of cell biology” This study identified two evolutionarily conserved ultra-high-sulfur keratin proteins in human and sheep hair follicles, which are specifically expressed in the hair cuticle during the late stages of fiber development.