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This study found that the dermal glycosaminoglycan content and mast cell count in rats peaked during the anagen stage of hair growth and decreased during later stages.

This study found variable outcomes in hair loss treatment with autologous cell-based therapy using DSC cells, with certain gene markers showing inconsistent correlations with treatment efficacy.

The researchers in this study identified a new subpopulation of dermal fibroblasts in neonatal murine dermis marked by EGFR, which they report contributes to hair follicle regeneration through the promotion of IGF1, potentially aiding in wound-induced hair follicle neogenesis.

This study found that a specific fragment of AIMP1 secreted by hair follicle stem cells can stimulate dermal papilla cells and promote hair regrowth.

This study found that overexpressing CRABP1 in dermal papilla cells promotes their proliferation and influences key genes in the Wnt/β-catenin signaling pathway, which may offer insights into mechanisms controlling hair follicle development.

This study suggests that the transcription factors SP1 and KROX20 regulate CUX1 gene's effect on the proliferation of ovine dermal papilla cells in vitro.

This study found that lipids extracted from Schizochytrium sp. significantly enhanced the proliferation and survival of dermal papilla cells under oxidative stress, reduced reactive oxygen species, inhibited ferroptosis, and promoted antioxidant genes, which improved hair growth in experimental settings, suggesting a potential treatment for alopecia.

This narrative literature review by Lustrao synthesizes existing research on six botanical ingredients used in Lustrao Hair Regrowth Oil, noting varying evidence levels with rosemary oil showing the clearest human clinical support for hair growth, particularly against minoxidil.

This narrative literature review by Lustrao examines the existing research on six botanical ingredients in their Hair Regrowth Oil, finding varied evidence levels and highlighting rosemary oil's strong human clinical support for hair growth compared to minoxidil.

This review highlights that collagen XVIIα1's role in maintaining dermal-epidermal junction integrity and hair follicle stem cell maintenance is compromised with age due to reduced levels and increased processing, potentially affecting skin and hair aging.

This research observed that overexpression of lncRNA H19 in human dermal papilla cells inhibited cell senescence and maintained hair follicle-inducing abilities by activating the Wnt signaling pathway, suggesting potential therapeutic strategies for androgenetic alopecia.

This study found that intradermal injection of a specially designed RNA molecule, cp-asiAR, successfully reduced androgen receptor levels and promoted hair growth in a mouse model of androgenetic alopecia, while also improving hair follicle characteristics in ex vivo human scalp tissues without significant toxicity.

This study concluded that S. hexaphylla extract may improve androgenetic alopecia by reducing 5α-reductase and androgen receptor levels, inhibiting apoptosis, and promoting keratinocyte proliferation in experimental models.

In this study, DHT was found to inhibit hair growth in mice by decreasing IGF-I production in dermal papillae through reduced sensory neuron stimulation.

This study reported that baicalin activates the Wnt/β-catenin signaling pathway in mouse hair follicles, suggesting its potential as a topical treatment for hair loss.

This study found that osteopontin mRNA is abundantly expressed in dermal papilla cells during the catagen phase of hair growth in rats, suggesting a role in this phase.

This study found that topical minoxidil modestly extended the anagen phase in mice by activating β-catenin activity in dermal papilla cells.

Minoxidil boosts hair growth by targeting adenosine and possibly sulfonylurea receptor 2B.

This study observes the expression of mRNA for androgen receptor, 5α‐reductase, and 17β‐hydroxysteroid dehydrogenase in human dermal papilla cells.

This study found that prevascularizing dermal matrices with adipose tissue-derived microvascular fragments improved vascularization and allowed earlier successful skin grafting in a bradythrophic wound model.

This study found that a 3D Matrigel culture technique for dermal papilla cell spheroids can enhance hair follicle inductivity and induce hair-like fiber differentiation in vitro, even with high-passage cells.

This study found that androgen metabolism within hair follicles varies significantly between compartments, with dermal papillae showing high 5α-reductase activity, suggesting a key role in androgen-driven hair growth responses.

This study suggests that IL-1β produced by dermal papilla cells, regulated by protein kinase C, may inhibit human hair follicle growth through paracrine signaling.

This study found that loliolide enhanced hair growth-related functions in 3D dermal papilla spheroids by activating AKT/β-catenin signaling pathways, with increased expression of related growth factors and genes.

This study found that IGF1, retinoic acid, and dexamethasone increase IGFBP-3 production in cultured human dermal papilla cells, potentially inhibiting IGF1 action on hair growth.

This study suggests that stress-induced premature senescence of dermal papilla cells may contribute to hair follicle aging by impairing critical epithelial-mesenchymal interactions and promoting inflammatory cytokine production.

In this study, l-Ascorbic acid 2-phosphate was found to stimulate hair follicle growth in vitro by promoting IGF-1 expression via the PI3K pathway.

This study suggests that androgens influence hair follicle behavior via the dermal papilla, using evidence from human and red deer cells with differing androgen responses as models.

This study found that conditioned medium from keratinocytes improved the hair-inductive properties of cultured dermal papilla cells, suggesting potential for enhancing hair follicle regeneration.

This study found that androgen/androgen receptor signaling accelerates premature senescence in dermal papilla cells, highlighting a potential target for treating androgenetic alopecia.