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In this animal study, cortisone injections inhibited hair regrowth in rats and rabbits, while bilateral adrenalectomy did not significantly affect the hair regrowth cycle.

In this study, topical application of Angelica sinensis extract on mice promoted hair regrowth by influencing key hair cycle pathways and reducing keratinocyte apoptosis during the catagen phase.

This study found that the pituitary gland is crucial for normal pelage color cycles in weasels, with certain hormones influencing regrowth of pigmented or white hair after molting.

In this study on C3H/HeJ-engrafted mice, a single injection of BMD-1141 significantly increased anagen hair follicle counts and enhanced hair regrowth compared to daily high-dose ruxolitinib, suggesting it stimulates hair growth by influencing the hair cycle rather than altering immune response.

This review describes minoxidil's hair regrowth mechanism and discusses dermatological applications, but reports no new clinical results, emphasizing the need for regular use and addressing allergic reactions.

This study found that microneedling induced nearly complete hair regrowth in two Pomeranians with alopecia X, suggesting it may be a promising alternative treatment for similar hair cycle arrest disorders.

This study found that citron seed oil promotes hair regrowth in a C57BL/6 mouse model by enhancing the transition to the growth phase, increasing hair follicle features and skin thickness, and inducing specific protein expressions that support hair regeneration.

In this study, Msx2-deficient mice showed progressive hair loss due to shortened anagen phase and prolonged catagen and telogen phases, resulting in cyclic alopecia with structurally abnormal hair shafts.

This study found that mice lacking the type 3 IP(3) receptor in their hair follicles experienced repetitive hair loss and regrowth, indicating disrupted hair-cycle regulation potentially linked to specific signaling pathways.

This study found that using a novel dissolving microneedle with valproic acid effectively enhances hair follicle regrowth through improved delivery and activation of the Wnt/β-catenin pathway compared to topical application.

In this study, platelet-rich plasma treatment improved hair regrowth and characteristics in mice and showed therapeutic efficacy in Chinese patients with androgenetic alopecia.

This source describes the first successful use of a deslorelin acetate implant to treat alopecia X in a neutered female dog, achieving profuse hair regrowth in 9 months, suggesting an uncomplicated and cost-effective alternative after melatonin failure.

This study found that the effects of the vitamin D receptor on hair follicle cycling in mice are independent of its ability to bind a hormone, with specific domain mutations influencing hair regrowth outcomes.

This study demonstrated that anagen can be induced in Stat3-disrupted mice, suggesting that both Stat3-dependent and independent pathways, possibly involving PKC, mediate hair cycle progression with required PI3K activation.

This literature review reported that fractional lasers, like the 1550-nm nonablative erbium-glass laser, may enhance hair regrowth by stimulating a wound healing process, but more randomized controlled trials are needed to confirm their effectiveness and optimize treatment parameters.

In this study, cyclosporin was found to prolong the hair-existing phase in nude mice, while corticosteroids inhibited its effect and suppressed hair regrowth.

In this study, ebastine significantly increased the proliferation of human follicle dermal papilla cells and may contribute to hair regrowth by activating the ERK signaling pathway.

This study found that Atractylodes macrocephala Koidz. extract promotes anagen entry and hair regrowth by enhancing dermal papilla cell activity and supporting hair cycle progression in a mouse model.

In this study using a mouse model with alopecia areata, the researchers found that ruxolitinib enhances hair regrowth by inhibiting the JAK-STAT signaling pathway, reducing inflammation and oxidative stress, and decreasing apoptosis, which supports its clinical effectiveness in treating this condition.

This study found that platelet-rich plasma therapy increased hair density in androgenetic alopecia and improved hair regrowth in chronic plaque alopecia, with better results when combined with minoxidil rather than finasteride.

This study demonstrated that thyroid hormone receptors play a crucial role in hair growth and skin health, as mice lacking these receptors showed impaired hair cycling and wound healing.

This study found that disrupted cholesterol homeostasis in scalp samples from cicatricial alopecia patients hinders hair regrowth by affecting hair follicle stem cell markers, with resulting effects confirmed in vitro and in animal models.

In this study, porcine collagen acellular dermal matrix scaffolds combined with mice platelet-rich plasma were associated with increased hair density and follicle regeneration in mice with alopecia, suggesting a potential therapeutic approach.

This study found that in transgenic mice overexpressing a mutant hairless gene, changes in its expression affected hair loss and regrowth, implicating the gene's role in hair follicle biology.

This study found that vismodegib promotes Basal cell carcinoma regression by inducing tumor differentiation but leaves a small population of quiescent cells that can drive relapse, which can be eliminated by adding a Wnt signaling inhibitor.

This study found that administering melatonin to ferrets can advance the timing of fur growth and reproductive cycles influenced by daylength and hormonal control.

In this study, Satura® Rosta remedy was found to significantly increase hair follicle size, hair root volume, and skin thickness in mice, potentially by prolonging the anagen phase, with notable hair regrowth observed in older mice with alopecia.

This study observed distinct sex differences in hair growth cycles and regeneration in C3H/He mice, noting that females regenerated hair faster after adhesive material application, whereas males were more reliant on macrophage activity for this process.

This review highlights the various causes and treatment options for alopecia, noting that while non-scarring types often see successful hair regrowth, scarring forms require early intervention to manage inflammatory destruction of hair follicles.

This study investigated the effects of a YH complex, derived from Cinnamomum cassia and Astragalus membranaceus, on androgenetic alopecia in mice, finding that it promoted hair regrowth and improved hair follicle health by modulating hair cycle regulation and reducing apoptosis signaling pathways.