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This study found that Ifidancitinib, a JAK1/3 inhibitor, significantly promoted hair regrowth and reduced inflammation in a mouse model of alopecia areata by decreasing pathogenic T cell activity and inducing T cell exhaustion.

The gut microbiome affects the development of alopecia areata.

This study found that topically applied Chinese black tea extract, when fermented and combined with capsaicin, significantly promoted hair growth in mice, potentially involving estrogen receptor interactions.

This study found that certain synthetic corticosteroid and progesterone analogues inhibited hair growth in castrated male mice, with varying effects based on specific chemical modifications.

In this study, researchers used a mouse model of alopecia areata to demonstrate that both ruxolitinib and baricitinib, oral JAK inhibitors, reduced hair loss, CD8+ cell infiltration, and expression of disease-related markers, with baricitinib showing greater effectiveness.

Arg1+ macrophages may play a role in Alopecia Areata, offering new treatment targets.

This study found that JAK1 and JAK3 inhibitors effectively reversed alopecia in a mouse model of AA by reducing skin inflammation, while JAK2 inhibition did not promote hair regrowth.

Gut microbiota influences the development of alopecia areata.

This study found that subcutaneous administration of conditioned medium from adipose-derived stem cells promoted hair growth in mice, and hypoxia enhanced this effect by altering growth factor secretion.

This study found that the extract of Asiasari radix may promote hair growth in mice by enhancing protein synthesis, cell proliferation, and growth factor expression.

This study found that the effectiveness of 17-beta-estradiol in inhibiting hair growth depends on its application method, and noted significant sex differences in response to 17-alpha-estradiol in male and female mice.

This study developed a mouse model for radiation cystitis that mimics human pathology and found that radiation exposure leads to increased urinary frequency and long-term weakening of urothelial integrity.

The study suggests that vaccination with soluble keratin peptides K71 and K31 significantly delayed the onset and progression of autoimmune alopecia areata in mice by inducing T cell anergy.

This study suggests that SOCS3 treatment may effectively inhibit alopecia areata by suppressing CD8+ T cell activity and IFN-γ production.

PTH-CBD helps reduce hair loss in mice by stimulating hair growth directly.

In this study using mice and human keratinocyte cells, researchers found that activating PKM2-mediated glycolysis and Wnt/β-catenin signaling, particularly via combined treatments, significantly accelerated wound healing and induced angiogenesis in wound beds.

In this animal study, researchers found that daily oral intake of salmon nasal cartilage proteoglycan enhanced hair growth in mice, potentially through a signaling pathway that stimulates specific growth factors in human follicle cells.

This study found that in alopecia areata, treatment with the oral JAK-inhibitor tofacitinib decreased clonally expanded CD8⁺ T cells in the scalp, but many expanded clones did not completely disappear, potentially leading to relapse after stopping treatment.

This study found that a topical plant worm extract significantly accelerated hair regrowth in mice without apparent toxicity or side effects.

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.

In this study, researchers evaluated CS12192, a selective JAK3 inhibitor, in an alopecia areata mouse model and found it reversed hair growth inhibition comparably to baricitinib, with better safety and similar immune-modulating mechanisms.

ITK inhibitors may effectively treat alopecia areata.

In this study, researchers found that BST2 expression is significantly upregulated in skin sections of mice with alopecia areata, implicating BST2's role in the disease pathogenesis through the action of epidermal γδ T cells and macrophages.

CD206+ macrophages are crucial for hair growth in alopecia areata treatment.

This study suggests that miR-486 may protect against alopecia areata by maintaining hair follicle immune privilege and modulating expression of immune-related genes.

This study found that orally administering the CCR5 inhibitor Maraviroc improved hair loss in 4 out of 5 mice with alopecia areata and also reduced the development of the condition, evidenced by decreased CCR5+ T-cell infiltration in treated mice.

This study found that miR-486 and miR-451 levels were reduced in alopecia areata-affected skin, and delivering their mimics to mice mitigated symptoms by reducing inflammation and immune activity.

This study found that Resina Pini and its main component, abietic acid, significantly promoted hair growth in a mouse model of androgenic alopecia by inhibiting 5α-reductase activity.

This study investigated the effects of Wnt-3a, Wnt-5a, Wnt11, and Wnt-10b on the hair induction-ability of cultured dermal papilla cells.

This study revealed that IP-PA1, derived from Pantoea agglomerans, promoted hair growth in mice and increased certain growth factor expressions in human cell cultures, suggesting a unique mechanism compared to traditional hair growth treatments.