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This study found that acid and alkaline phosphatases serve different functions in Beagle dog skin, with ALP primarily involved in growth processes and ACP in phospholipid breakdown.

This review outlines the role of testosterone in male sexual development and its therapeutic use for male hypogonadism, covering its biosynthesis, secretion, metabolism, and various biological actions, but does not report specific study results.

This study identified the placenta at the base of the ovary as the origin of poplar seed hair development and detailed transcriptome dynamics during the growth process.

This review examines the development and molecular mechanisms of hair follicle and wool traits in sheep, but reports no new results, aiming to support breeding and selection strategies.

This review discusses the use of the feather model to explore tumorigenesis, regeneration, and hormone-dependent growth, highlighting its potential for advancing biomedical research, but reports no novel experimental results.

This narrative review explores existing evidence on zinc's impact in certain immune-related, gastrointestinal, dermatological, and metabolic disorders, considering clinical and observational studies to assess zinc supplementation's clinical relevance.

This article reviews different generations of synthetic retinoids for dermatological use, discussing their efficacy and significant side effects, but reports no new clinical results.

This review explores the structural and functional sex differences in mammals beyond reproductive organs, highlighting variations in life expectancy, organ size, metabolism, and immune function, but it reports no new results.

This review discusses the development of Matrigel and its role in identifying thymosin beta 4 as a regenerative protein, without reporting new experimental findings.

This review discusses the properties and extraction methods of keratins from natural fibers and highlights their promising applications in fields such as biomedicine, bioengineering, and forensic science, but reports no new experimental results.

This review examines current understanding of hair graying and suggests it may be caused by depletion of melanocyte stem cells due to genotoxic stress or dysfunctional melanocytes from oxidative stress.

This study found that humans have a significantly slower wound-healing rate compared to non-human primates and other animals, suggesting that slow wound healing is a characteristic unique to humans within the primate order and potentially indicating evolutionary adaptations.

This review discusses the fundamental hallmarks of aging as they relate to skin aging and highlights the prominent roles of oxidative damage and the extracellular matrix in photoaging, reporting no new results.

In this study involving adult mice, the researchers identified that double-stranded RNA-mediated activation of toll-like receptor 3 stimulates wound-induced hair neogenesis, potentially reflecting mechanisms used in facial rejuvenation treatments.

In a mouse model, this study found that intradermal keratin injection stimulated hair growth and suggested its potential use for treating hair loss by promoting hair regeneration.

This review reports on the effects of aging on hair characteristics such as pigmentation, growth, and structural properties across genders and ethnicities, highlighting the importance of scalp health and suggesting cosmetic solutions to improve the appearance of aged hair.

This review discusses the therapeutic potential and challenges of using extracellular vesicles derived from mesenchymal stem cells, concluding that they may have a comparable therapeutic potential to the original cells despite current challenges in their application and production.

This review discusses the role of mineral nutrients in human health, emphasizing the importance of dietary sources and education to prevent mineral deficiencies, and reports no new clinical results.

This review discusses nitric oxide's physiological roles and the development of strategies for delivering it exogenously, without presenting new clinical results.

This review discusses the role of the Wnt/β-catenin signaling pathway in wound healing, but it presents no new clinical results.

This article reviews the stages and regulation of the hair cycle, highlighting molecular regulators involved, but it does not present new research findings.

This review summarizes the major events and regulators of the hair cycle in mammals but reports no new experimental results; it emphasizes the complex regulation of stem cell activation and differentiation during hair growth.

This review summarized advancements in intestinal lymphatic drug delivery, emphasizing the evolving understanding of lymphatics as active players in health and disease, which has led to innovative therapeutic strategies and enhanced pharmacokinetic outcomes via this delivery route.

This article argues that the mind-body problem is a false issue, proposing that the mind merely temporally associates immaterial data with material support without actual interaction.

Androgenetic alopecia is the main reason people lose hair, and while some think it's normal, others find it abnormal and want treatment.

The study's findings on VLDL as a biomarker for hair loss are unreliable.

This review explores the diverse physiological roles of the vitamin D endocrine system, discussing current research on receptor structure, transcription details, murine models, and alternative receptors, but reports no new findings.

This review explores how adipose-derived stem cells contribute to skin homeostasis and highlights recent advances in their clinical applications in dermatology, but it reports no new clinical results.

This article discusses the role of human hair follicles in neuroendocrinology and suggests potential new therapeutic targets by examining how neuromediators influence hair growth, pigmentation, and stem cell biology in organ cultures.

This review concluded that monoclonal antibodies are currently the most effective treatment for COVID-19, with potential efficacy of high-titer convalescent plasma when used early, while multiple other drugs require further evaluation to determine their effectiveness.