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Blocking a protein called prostaglandin D2 might help treat hair loss.

In this study, pantothenic acid at 20 μg/ml was observed to promote dermal papilla cell proliferation and migration, likely through up-regulation of ID3 and inhibition of Notch signaling.

In this study, 12-Chloracetyl-PPD showed anti-cancer activity by inhibiting cancer cell viability and inducing apoptosis through reactive oxygen species production without harming normal cells.

A 4kb fragment of the desmocollin 3 promoter targets gene expression to specific skin and hair follicle areas.

This study showed that knocking out the Ppp2ca gene in the epidermis of mice led to significant hair loss and disrupted hair follicle morphogenesis and regeneration.

The study concluded that fatty acid transport protein 4 in epidermal keratinocytes is crucial for maintaining normal skin structure, as its deficiency led to hyperkeratosis and epidermal barrier disruption in mice.

This study found that overexpression of sFRP4 in skin cells reduces Wnt signaling activation, leading to decreased melanocyte differentiation in regenerating hair follicles.

This study found that progesterone enhances the survival of newborn neurons in the hippocampus of adult male mice, which is associated with improved spatial learning and memory.

This study observed that PCE-DP may improve skin pigmentation by increasing epidermal turnover and inhibiting melanin uptake and inflammation in human epidermal keratinocytes.

This study suggests that the expression of the DP2 receptor is higher in balding scalp cells and that its knockdown could inhibit the transition to the catagen phase in cultured human hair follicles, potentially counteracting hair growth inhibition associated with male pattern baldness.

In this study, treatment with recombinant DKK2 was shown to significantly stimulate hair progenitor cell growth and enhance hair shaft elongation in ex vivo human hair follicle cultures by activating the Wnt/ẞ-catenin signaling pathway, suggesting a potential role for DKK2 in promoting hair growth.

This study found that 15-dPGJ2 promotes apoptosis in human follicular keratinocytes, suggesting its potential role in developing hair loss prevention treatments through DP2 antagonism.

This study found that progesterone increased the survival of newborn neurons and enhanced spatial learning and memory in adult male mice, independent of neuron production changes.

This study found that neurotrophin-4 regulates Cav3.2 T-current expression in D-hair neurons via TrkB receptor activation, highlighting its role in mechanosensitive function.

This study shows that NIPP1 deficiency in mouse epidermis leads to hyperproliferation, hair loss, and chronic skin inflammation, which can be partially alleviated by dexamethasone treatment.

This study found that deleting podoplanin in mouse keratinocytes promoted hair follicle growth during regeneration, suggesting it may regulate hair cycling pathways that could aid in treating hair loss conditions.

AGC2-1 protein is essential for root hair growth in Arabidopsis.

This study found hair regrowth in the majority of AA-affected mice and rats treated with diphencyprone, suggesting its potential utility for understanding human alopecia areata and the drug's therapeutic action.

This study suggests that higher PDCD4 expression may play a significant role in polycystic ovary syndrome pathogenesis through its association with obesity, insulin resistance, lipid metabolism disorders, and increased granulosa cell apoptosis.

ATP-sensitive potassium channels are important for hair growth.

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 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 a single application of TCDD on the skin of hairless mice altered epidermal differentiation, changing keratin expression patterns similarly to a known tumor promoter.

This study found that increased Bcl-2 protein expression after DPCP treatment was associated with hair regrowth in alopecia areata patients, suggesting its role in inhibiting apoptosis.

This study found that p2y5 functions as a novel LPA receptor involved in the G13-Rho signaling pathway, with implications for human hair growth, and proposes renaming it to LPA6.

This study found that a phosphorus starvation-insensitive mutant of Arabidopsis thaliana shows altered root growth and auxin responses under low phosphate conditions compared to wild-type plants, suggesting a role for LPR1 in regulating these traits.

In this study, ginsenoside 20(S)-protopanaxadiol-aglycone (PPD) was shown to downregulate androgen receptor expression and inhibit tumor growth in prostate cancer cells.

This study suggests that Ptprq in the hair bundles may exist as multiple isoforms that are differentially expressed throughout development and affect the organization of stereocilia in the chick inner ear.

This study presents the G4 transgenic mouse model, which suggests a direct link between polycystic ovary syndrome and the Gm10800 gene, offering a valuable tool for understanding the disease and testing treatments.