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This study found that intradermal reactivity to histamine in dogs varies with time of day, and glucocorticoids may influence this variation.

This study found that aging mice with an epidermal deletion of DNA methyltransferase 1 had a reduced number of hair follicles, due to decreased stem cell activation probability.

This study found that transient activation of c-Myc in transgenic mice stimulates keratinocyte proliferation and sebocyte differentiation, affecting normal epidermal and hair follicle development.

This study describes the enzymatic processes through which DHEA is converted to active sex steroids in human skin, highlighting an androgenic effect on sebaceous glands and estrogenic effects in the vagina.

This study showed that Thujae occidentalis semen extract inhibited 5alpha-reductase type 2 in laboratory tests and reduced androgen-related hair loss in animal models, suggesting potential use for male pattern baldness.

This study found that several synthesized pregnane derivatives exhibited significant inhibitory effects on testosterone conversion to dihydrotestosterone and reduced related androgenic parameters in multiple pharmacological models.

This study introduced a novel nonsteroidal androgen receptor antagonist that effectively controls sebum production in the golden Syrian hamster ear model through targeted follicular delivery.

This article discusses the complex interaction between androgens and the skin, highlighting elevated androgen levels in women with hirsutism, female-pattern hair loss, and acne, but reports no new clinical results.

This study found that COX-2 expression in normal rat skin is linked to the hair cycle, with varying levels observed in different skin structures during anagen, catagen, and telogen phases.

This chapter reviews hyperadrenocorticism in ferrets, covering its causes, symptoms, diagnosis, and treatment options, but reports no new research findings.

This report describes two scalp lichen simplex chronicus cases with hair loss and intense itching, noting unique dermoscopic and histopathological features.

This study observed that hair follicle morphology in dairy cows changes during the peripartum period, with fluctuations in hair follicle width and anagen percentage but no overall marked changes in skin morphology parameters.

This review discusses the roles of hair follicles and sebaceous glands in percutaneous transport and reports no new results, noting a lack of adequate models and methodologies.

In this animal study, researchers found that the simultaneous deletion of ERBB2 and ERBB3 in mice results in impaired skin differentiation, inflammation, and sebaceous gland alteration, leading to skin lesions, while highlighting potential side effects in cancer therapies targeting these receptors.

In this case report, a 16-year-old African American girl with sebaceous filaments on her face was successfully treated with topical tretinoin, highlighting the importance of recognizing and treating this under-reported condition for improved appearance and quality of life.

This study found that herbal creams containing tea tree oil significantly reduced hair growth in mice with hirsutism, while those containing reishi extract or both were less effective.

This review discusses the importance of early diagnosis and the management of hidradenitis suppurativa, reporting no new clinical results but highlighting current therapeutic approaches and need for collaboration in treatment.

This study found that removing PPARγ specifically from mouse adipose tissue led to severe fat loss, insulin resistance, diabetes, and associated metabolic abnormalities.

Different types of stem cells and their environments are key to skin repair and maintenance.

This study found that modulating BMP activity in transgenic mice affects the development and characteristics of several ectodermal organs, such as skin, hair, and claws, highlighting a stage-dependent influence on organogenesis.

This study found that maternal PPARγ is essential for preventing the production of inflammatory lipids in mouse milk, which can otherwise cause inflammation, alopecia, and growth retardation in nursing pups.

In this study, key histologic features such as mucinous perifollicular fibroplasia were identified to aid in the diagnosis of lichen planopilaris.

This study found that androgen receptor activation in adult mouse skin reduces β-catenin-induced hair follicle growth and sebaceous gland conversion, highlighting its role in stem cell fate decisions.

This study demonstrated that implanting μm-scale full-thickness columns of human skin tissue into immunodeficient mice restored key features of normal human skin, suggesting potential for human wound repair with minimal donor site morbidity.

This study observed no correlation between Demodex species and skin condition among Aborigines, though D. brevis was associated with sebaceous gland degeneration in one case.

This study observed that epidermal necrosis and keratinocytic ballooning are consistent histopathologic signs of monkeypox in skin lesions, reinforcing the diagnostic value of histopathologic and immunohistochemical analyses.

This study shows that multiphoton microscopy can non-invasively distinguish between scarring and non-scarring alopecia by identifying certain morphological features, but further research is needed to confirm its clinical utility.

This study introduces a five-modal microscopy technique that allows label-free, in vivo observation and quantitative analysis of various wound healing processes.

This study found that the scarring folliculitis type of acne inversa in the Chinese population is associated with specific histopathological features and a higher prevalence of smoking and occupational exposure.

This review highlights that clascoterone, a newly FDA-approved topical androgen antagonist, effectively reduces both non-inflammatory and inflammatory acne lesions with no systemic effects, making it a promising new option for acne treatment in both male and female patients.