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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.

This study observed that mixed breed cows with alopecia, ill-thrift, and infertility had significant decreases in serum copper, zinc, calcium, inorganic phosphorus, and magnesium, alongside signs of anemia.

This study found that cows with alopecia, ill-thrift, and infertility exhibited significant decreases in serum copper, zinc, calcium, inorganic phosphorus, magnesium, and hematological measures, indicating moderate microcytic, hypochromic anemia.

This study found that multiple vitamins, including B6, increased the number of growing follicles in newborn mouse ovaries in vitro. VB6 promoted primordial follicle activation via the PI3K/Akt signaling pathway in both cultured mouse and human ovarian tissues.

In this study, researchers used synchrotron X-ray imaging to examine rat vibrissa follicles, finding that despite variations in vibrissa length and follicle size, certain sensory structures remain consistent, suggesting specialized roles in sensory processing depending on the vibrissa type.

In this study, researchers developed and tested an herbal hair serum containing natural ingredients like banana flower extract and orange oil, which was stable and pH-balanced, with preliminary user feedback suggesting improved hair texture, reduced hair fall, and increased hair density.

This study found that fecal zinc concentration can serve as a biomarker for early diagnosis of zinc deficiency in lambs, complementing serum zinc evaluations.

This case report highlights that inherited zinc deficiency can persist into adulthood and emphasizes the importance of selecting optimal chelating agents to improve oral zinc bioavailability.

This review discusses current uses and advancements in mesenchymal stem cell-derived conditioned media as a potential regenerative therapy but does not present new clinical findings.

In this study, fiber implantation for pattern baldness was deemed ineffective and resulted in complications such as infection, scarring, and permanent hair loss, making it an unacceptable treatment option.

This article reviews the complex challenges of managing scalp and cranial deformities post-trauma or surgery, advocating for better multidisciplinary approaches to enhance outcomes, but reports no new results.

This study found that finasteride- and dutasteride-loaded iron oxide nanoparticles improved drug penetration in the skin, suggesting they may be promising for topical alopecia therapies.

This study found that a newly identified mutation in the hairless gene in mice led to decreased Hr mRNA levels and changes in gene expression related to hair follicle development.

In this study, different drying methods for Hedychium spicatum rhizomes significantly affected the essential oil yield, antioxidant potential, and compound composition, with the HSOV30 method yielding the highest oil content, antioxidant activity, and specific compound levels such as 1,8-cineole and elemol.

This case report describes a 45-year-old unvaccinated woman who experienced severe telogen effluvium, losing over 80% of her hair, about three months after recovering from COVID-19.

In this study, researchers found that supplementation with L-cystine, either alone or with a keratin hydrolysate, significantly improved hair density, hair and nail brightness, and nail growth in women experiencing acute telogen effluvium and brittle nail syndrome over three months.

The book is a detailed guide on dermatologic surgery techniques, recommended for both new and experienced doctors.

This study found that biologic rhythms in mammoth hairs differed from those in modern human hair, with variations in growth rates and mineral content providing insights into the lifestyle and behavior of extinct species.

In this study, zinc supplementation at 2.00 g/camel/day improved hair growth in lactating camels but did not affect milk production, while for calves, doses of 0.50–0.75 g/camel/day enhanced growth and hair development.

This notice states that the article has been withdrawn due to the journal's transfer to a new publisher and reports no research findings.

This review discusses the growing use of scalp hair for elemental analysis in various fields and highlights advancements in analysis techniques, including the future potential of laser ablation ICP-MS, but reports no new clinical results.

This study observed that keratose, derived from human hair, integrated well in mouse tissue and remodeled with collagen, suggesting potential as a non-toxic biomaterial for regenerative applications.

This study suggests that while hair analysis using GC-MS is a sensitive method for detecting cocaine ingestion, it may not reliably indicate the amount, timing, or duration of drug use due to interindividual variability and multiple incorporation mechanisms.

This study concluded that selenium supplementation for ovarian cancer patients during chemotherapy may have several beneficial effects, such as increased antioxidant enzyme activity, reduced chemotherapy-related symptoms, and higher selenium levels in serum and hair.

This review discusses the psychological importance of hair and explores how various hair cosmetics can affect hair health, emphasizing that certain products can lead to acute hair problems when repeatedly altering the natural style.

This review examines the pathogenesis of premature hair graying and potential treatment avenues, but reports no new experimental outcomes, highlighting ongoing research challenges and hopes for drug development.

This study shows that environmental contamination affects mummy hair, suggesting that using it to assess ancient people's health or nutrition should be approached cautiously.

This review discusses Charnoly bodies as biomarkers of cell injury and potential therapeutic targets in neurodegenerative, cardiovascular, and cancer treatments but reports no new clinical results.

This study involving male patients with androgenic alopecia found that a higher baseline zinc plasma level, specifically above 10 µmol/L, may predict the success of treatment with 5% topical minoxidil, correlating with increased hair density and diameter in the parietal area.

This article reviews the properties of cellulose nanocrystals for sustainable development but presents no new experimental results.