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Among Japanese patients with generalized vitiligo, this study found a genetic susceptibility to autoimmune diseases, particularly autoimmune thyroid disease, within families.

This study observed that long-term use of finasteride in Japanese men with androgenetic alopecia was associated with progressive hair regrowth in 87.1% of participants without significant safety concerns.

This study reported that the aqueous ethanol extract of Lygodii Spora demonstrated in vitro testosterone 5alpha-reductase inhibition and in vivo anti-androgenic activity, potentially due to oleic, linoleic, and palmitic acids.

In this study, the methanol extract of Cercidiphyllum japonicum heartwood was found to stimulate the proliferation of mouse hair epithelial cells, with several isolated compounds showing significant proliferative activities.

This study found that Rumex japonicus extract may help reduce symptoms of atopic dermatitis by inhibiting inflammatory responses in both cell cultures and a mouse model.

Acankoreoside J from Acanthopanax koreanum may help promote hair growth.

This study found that a newly synthesized peptide from fermented Trapa japonica extract significantly promoted wound recovery and showed antiaging effects in skin cells and a clinical study, suggesting potential as a cosmetic product.

This clinical trial found that the extract complex of Cistanche tubulosa and Laminaria japonica (MK-R7) significantly improved hair density and diameter in patients with patterned hair loss over 16 weeks.

This study identified a severe MBTPS2 gene mutation in a Japanese patient with IFAP syndrome, suggesting other factors may influence the varied clinical severity of the condition.

In this study, long-term finasteride treatment improved androgenetic alopecia in Japanese men, with younger age and less advanced disease at treatment start predicting better efficacy.

This study found that Bacillus/Trapa japonica fruit ferment filtrate extracts enhanced human hair follicle dermal papilla cell proliferation through the Akt/ERK/GSK-3β signaling pathway, suggesting potential benefits for alopecia treatment.

In this laboratory study, Camellia japonica fruit shell extract showed potential to mitigate hair loss by promoting hair cell growth and reducing harmful effects of DHT and oxidative stress.

In this study, researchers found that a mixture of Saccharina japonica and Undaria pinnatifida (L-U mixture) promoted hair growth in mice comparably to 3% minoxidil. The L-U mixture stimulated hair growth-promoting genes and suppressed hair loss-related genes, suggesting its potential for hair loss treatments.

This study isolated a bioactive peptide from Trapa japonica fruit and found that it may protect human dermal papilla cells from DHT-induced stress, suggesting potential for biomedical applications.

This letter discusses the potential of the Janus kinase 1 inhibitor abrocitinib for treating oral lichen planus but provides no new research findings.

This study found that methyl jasmonate can induce tanshinone biosynthesis in S. miltiorrhiza by affecting the expression of the SmMEC gene, as supported by RT-PCR and transcriptomic data.

This study found that C. japonicum flower extract significantly increased melanin content and cellular activity in human melanocytes and may improve follicular depigmentation and vitiligo through cAMP signaling.

This study found that oral dexamethasone and DPCP were more effective for treating severe alopecia areata compared to oral ritlecitinib and baricitinib, but oral ritlecitinib had better safety outcomes.

This study found that a solution containing 0.5% Camellia japonica placenta extract increased scalp moisture and reduced sebum content, dead keratin, and erythema in adult females, suggesting potential as a scalp treatment.

Oral JAK inhibitors are safe for alopecia areata, but baricitinib may cause more acne and infections.

This study found that microwave-assisted extraction significantly increased the yield of secondary metabolites, including phenolic and flavonoid content, from Nardostachys jatamansi, enhancing its anti-Alzheimer's potential compared to conventional extraction methods.

This letter to the editor discusses the natural course of epidermolysis bullosa simplex with mottled pigmentation in a Japanese family but does not present new clinical results.

This animal study found that Laminaria japonica mixed with insulin-like growth factor-1 significantly promoted hair growth in mice, suggesting its potential use for treating alopecia pending further clinical trials.

This study found that oregonin, isolated from Alnus japonica, demonstrated strong antioxidant activity and apoptosis modulation in hair follicle cells, suggesting its potential as a natural ingredient for preventing hair loss in cosmetic products.

This paper discusses the health benefits and cultivation of new beta-carotene-rich antioxidant maize varieties released by the Ministry of Agriculture, noting their potentially higher yields compared to ordinary corn.

This case report describes a Japanese bone marrow transplant recipient who developed a high-risk cutaneous squamous cell carcinoma on the scalp, potentially linked to long-term voriconazole use.

Pulsed dye laser and hydrogel dressings effectively treat hypertrophic scars.