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Keratin fibers in hair twist left-handed.

This paper discusses the multipotency of cyst cells and proposes that understanding molecular circuits in cyst formation could enable engineering of desired stem cell culture phenotypes, but reports no new experimental outcomes.

The hair follicle structure is more complex than thought, with new findings on protein formation.

This study presents two adolescent cases of ovarian hyperthecosis, a rare cause of severe hyperandrogenism, highlighting management strategies involving gonadotropin suppression and hormone replacement after excluding androgen-producing adrenal and ovarian tumors.

This study examined developing hair cortex with electron microscopy and found that keratin fibrils form between specific regions in hair follicles and aggregate into twisted cables.

This study generated a transcriptomic map of human hair follicles, identifying compartment-specific gene expression profiles that can aid in developing targeted therapies for hair follicle disorders.

This review discusses the cell biological characteristics of the outer root sheath of normal human hair follicles and highlights some similarities and differences with trichilemmal tumors, but reports no new results.

The connective tissue around hair follicles changes structure throughout the hair cycle.

This article discusses the complexities of diagnosing pituitary dependent hyperadrenocorticism in dogs and reports no new clinical findings, highlighting issues with varied symptoms and episodic hormone secretion complicating diagnosis.

This study in Hexi cashmere goats found that secondary follicle activity increases with time, and Hoxc13 expression varies significantly across different growth stages, suggesting a role in follicle activity.

This case study diagnosed a cat with pituitary-dependent hyperadrenocorticism, confirmed by specific hormonal tests and post-mortem findings of adrenal hyperplasia and a pituitary adenoma.

This study found that during hair follicle morphogenesis in embryos, the expression pattern of the Hoxc13 gene and skin thickness show similar trends, suggesting possible regulatory mechanisms within Hoxc13 intron regions.

Oxytocin from hair cells helps hair growth and stem cell increase.

This study introduces the Hair Cell Analysis Toolbox (HCAT), a machine-learning software that automates the analysis of cochlear hair cells, enabling unbiased and comprehensive imaging data interpretation.

This study reported that relocation in police horses was associated with elevated hair cortisol concentrations, possibly suggesting altered welfare due to changed surroundings, and that seasonal variations affected both cortisol levels and hair growth.

This study found that hair follicle matrix progenitors differentiate into various layers asynchronously, with early progenitors forming the companion layer and later progenitors generating the inner root sheath and hair shaft.

This study suggests that the inner root sheath plays a significant role in maintaining hair follicle homeostasis during the catagen phase's early stages.

In this retrospective chart review, researchers found that keratinocyte carcinomas on the scalp and forehead of non-alopecic women occurred more frequently in the part line of the scalp, with basal cell carcinoma being more common than squamous cell carcinoma.

This study found that hoof progenitor cells from fresh equine tissue have multilineage differentiation capabilities, offering insights for future progenitor cell-based hoof and dermal-epidermal tissue engineering.

In this study, researchers found that tritiated cortisol was incorporated into the hair of rhesus monkeys primarily as cortisol and cortisone, as well as other metabolites, after systemic administration.

This case report describes a 35-year-old woman with a Rathke’s cleft cyst presenting with Cushing disease, highlighting the need to evaluate hormonal hypersecretion in atypical pituitary lesions.

This study concluded that higher androgen levels in males and specific skeletal sites may contribute to differences in skeletal morphology, with glucocorticoids, E2, and D3 enhancing androgen receptor expression and mitogenic action in human osteoblastic cells.

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, researchers engineered ventral skin organoids (vSkOs) with specific cellular compositions and signaling environments to generate human amnion-like tissues called Amnioids, offering new tools for studying human development and potential regenerative therapies.

This study found that high-speed optical coherence tomography may be a promising non-invasive tool for analyzing human hair conditions.

This study found that hippocampus sparing whole brain radiation therapy (HS-WBRT) using multi-field intensity modulated radiation therapy prevents alopecia without compromising cognitive function compared to traditional whole brain radiation therapy.

This study found that while niche architecture optimizes organ efficiency during hair follicle growth, it is not essential for the function of stem cell-derived tissues.