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This research observed that 5α-reductase inhibitors showed significant tic-suppressing effects in Tourette's syndrome, suggesting a key role for this enzyme in the disorder's pathogenesis.

This study suggests that egfl6 expression in the pharyngeal pouches is not essential for craniofacial development in zebrafish.

This review discusses the influence of androgens on opioid-mediated effects and calls for further research into their role in sex differences and potential therapeutic options for chronic pain and substance use disorders.

This study found that trichohyalin, a protein previously thought to be restricted to hair and tongue, is also present in isolated cells within the granular layer and stratum corneum of normal human epidermis.

This study found that higher dihydrotestosterone (DHT) levels are associated with reduced crowing complexity in Kokok Balenggek roosters.

This study found that DHHC13 is crucial for hair anchoring and skin barrier function, with its deficiency in Zdhhc13(skc4) mice leading to cyclic alopecia and skin abnormalities due to cornifelin deficiencies.

This study reports that the differential expression patterns of three retinaldehyde dehydrogenases suggest a regulated need for retinoic acid synthesis in various organs during late mouse organogenesis.

This review provides an overview of Hox genes, focusing on their evolutionary history, genomic organization, and roles in development, but reports no new study results.

This review discusses the roles of hormonal pathways in regulating male sexual function, particularly highlighting the impact of testosterone, and reports no new research findings.

This study found that neonatal blocking of androgen and estrogen pathways in rats altered sex-specific expression of estrogen and androgen receptors in adult pituitary and adrenal glands, potentially influencing lifelong neuroendocrine function.

This review discusses recent advancements in omics and gene editing technologies for studying neuropeptides and receptors in fish, but reports no new experimental findings; the authors highlight the need for further research in this area.

This study found that long-term use of difluprednate ophthalmic emulsion in dogs can lead to HPA axis suppression and potentially cause iatrogenic hyperadrenocorticism, with localized alopecia suspected due to dermal absorption.

This study identified a 195 bp duplication in crested chickens that causes large crest feathers and can be associated with cerebral hernia in some breeds, but not all.

This study found that prolonged administration of DHEA improved long-term memory and brain activity balance in old rhesus macaques, with effects like increased motor activity and restored hair lasting a year.

This study suggests that human scalp hair follicles express erythropoietin and its receptor, up-regulating receptor expression under hypoxic conditions, and may mimic another hypothalamus–pituitary axis equivalent involving the TRH-TSH system.

This study observed that dermal dendritic cells migrate to the epidermis in mouse tail and back skin, correlating with changes in epidermal physiology like ortho- and parakeratosis.

In this study, forced expression of the transcription factor cDermo-1 in chicken dermis led to the formation of ectopic feather buds and enhanced feather growth, demonstrating its role in initiating skin appendage development.

This study found that human trichohyalin has a unique protein sequence potentially contributing to at least three important functions in hair follicle and epidermal cells.

This review examines the neuroendocrine mechanisms underlying seasonal changes in mammals and highlights areas needing further research, reporting no new experimental results.

This review discusses the interrelationship between the anterior pituitary's adrenocorticotropic hormone (ACTH) and the adrenal cortex, but reports no new experimental findings.

This study purified trichohyalin protein from pig tongue epithelium, characterizing its unique properties and structure, which may facilitate future functional research.

This study suggests that human trichohyalin may function as a flexible rod linking keratin intermediate filaments and as a scaffold protein in hair follicle and epidermis cell envelopes.

This study found that the unique crest feather formation in Polish chickens is driven by a 195-bp duplication in the HoxC10 gene region, which alters gene expression by modifying the genomic structure, suggesting a mechanism for diverse integumentary appendages in birds.

In this study, sweat duct differentiation was found to be a rare feature in trichilemmal cysts, occurring in only 0.97% of cases, and was likely under recognized.

This study describes how avian-inspired imagery is used in dermatology to help clinicians and patients identify and communicate skin conditions, using familiar terms like "chicken skin" and "fried egg" to capture specific visual patterns and clinical features.

This study observed that combined treatment with thyroxine and hydrocortisone increased lipid accretion and fat cell development in hypophysectomized fetal pigs, suggesting a key role of these hormones in fetal adipogenesis.

In this study, alopecia areata patients treated with diphencyprone showed a significant increase in CD8 lymphocytes around hair bulbs, which may be associated with hair regrowth.