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This chapter discusses the role of hormones in regulating reproductive biology and outlines how the endocrine system, particularly the brain and pituitary gland, controls these hormonal processes.

In this study, researchers used high-resolution MRI to distinguish anatomical differences in the scalp and hair follicles between tertiary androgenetic alopecia and severe alopecia areata, identifying subcutaneous tissue layer thickness as a key discriminative factor with high diagnostic value.

This commentary discusses the feasibility and challenges of uterine transplantation for transgender women, emphasizing anatomical, hormonal, and ethical considerations without reporting new clinical results.

This study found that while overall differences are minimal, oscillatory punches are significantly more effective than rotary punches for cases requiring hair extraction through soft scalps or deeper punches, and following structured guidelines can improve outcomes.

In this study, high-resolution ultrasound imaging revealed that DHT administration in male C57BL/6 mice leads to increased epidermal and dermal thicknesses and decreased skin elasticity, simulating structural changes associated with Androgenetic Alopecia.

In this study, researchers characterized the retinal structure and function of the Oat^rhg mouse model of gyrate atrophy, finding localized atrophy without significant retina-wide functional impact, suggesting the model may be useful for testing new treatments using multimodal retinal imaging.

This study found that human C-tactile afferents respond to hair deflection, suggesting a functionally relevant anatomical relationship to hair follicles similar to that observed in mice.

This study successfully developed 3D hair follicle organoids from neonatal mouse epidermal and dermal cells, showing structural and molecular resemblance to native anagen hair follicles.

This summary explains the different types of wrinkles, their causes, and their distinct microanatomical characteristics, noting that each type may respond differently to treatments.

This review highlights recent advances in understanding how the extracellular matrix regulates epidermal stem cell fate, emphasizing the importance of the hair follicle stem cell niche, but reports no new empirical findings.

This review discusses the developmental regulation of wound healing mechanisms in mammals, focusing on the role of the Wnt and TGF‐β signaling pathways, and reports no new clinical findings.

This study found that zebrafish and sticklebacks, despite differences in their tooth regeneration structures, share a similar genetic program during tooth regeneration, suggesting a conserved "successional dental epithelium" in vertebrates.

This review highlights the potential of bioengineered dermal scaffolds in tissue engineering to enhance wound healing by mimicking the dermal structure and supporting cellular processes, while also discussing recent advancements and challenges in scaffold technology.

This study found that Bakhtiari sheep hair fibers and follicles became larger and more organized with age across all skin regions, with no significant differences by sex.

This chapter provides an overview of skin physiology, aging effects, and how environmental factors like UV damage impact skin health, without presenting new research findings.

This study found that the MIRA technique, which customizes needle length and injection angle guided by ultrasound, improved structural and esthetic outcomes for cellulite treatment compared to standard methods.

This review discusses the interplay between signaling/transcription factor-mediated and epigenetic mechanisms in skin development and regeneration, highlighting the need for further exploration of epigenome reorganization in these processes.

The document concludes that scalp health is influenced by complex factors affecting sebaceous glands, including hormones, aging, and various substances.

Hair health is influenced by genetics, aging, and environmental factors, with proper care needed to maintain it.

The document concludes that understanding hair biology is key to treating hair disorders, with gene therapy showing potential as a future treatment.

This review discusses the role of signaling networks in sebaceous gland development and disorders, highlighting recent insights from mouse models and cell line studies, but reports no new experimental results.

This study found that postnatal treatment with recombinant EDA normalized adult teeth, improved sweating, and restored normal lacrimation in dogs with XLHED, suggesting its potential as a treatment for the condition.

In this study, NAC was observed to counteract the negative effects of cyclophosphamide on hair follicles in mice, preserving both biochemical parameters and hair structure, suggesting its potential as a therapeutic option for chemotherapy-induced hair loss.

In this study, researchers developed an enhanced rodent model of trigeminal neuralgia, demonstrating that structural and functional changes in the anterior cingulate cortex are linked to chronic pain and emotional disturbances, and chemogenetic inhibition of specific neurons could alleviate symptoms.

This report describes a rare case of leprosy involving the scalp, a location not typically conducive to Mycobacterium leprae infection, and adds to existing literature without presenting new experimental findings.

This review explores how adult skin epithelia preserve stem cell populations for hair follicle regeneration and wound healing, but reports no new experimental results.

This study found that distinct low-threshold mechanoreceptors innervate different hair follicle types in mice, suggesting that these follicles serve as unique mechanosensory structures in touch perception.

This forum article in BMC Biology discusses evolving views on the concept of the stem cell niche, highlighting varied mechanisms and the need for better understanding of the niche's roles and functions.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

This study found that cultured dental papilla cells from various mammals can induce hair follicle regeneration and influence tissue formation, with outcomes dependent on donor age, tooth type, and host environment.