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The document emphasizes the importance of ongoing research and ethical considerations in genome editing and cellular reprogramming.

The book is a comprehensive resource on hair disorders, but lacks information on some conditions.

This study described two cases of trichoblastomas in the tactile hair skin of aged house musk shrews, highlighting that their histological structure differs from that in humans and other animals.

This report describes a unique benign neoplasm on the nail unit called onychoblastoma, which histologically resembles a trichoblastoma, marking the first documented case of this tumor type.

This study found that treating neonatal mice with the neurotoxin 6-OHDA resulted in temporary hair loss and thinner skin compared to control mice, linking sympathetic neurons to hair growth and skin thickness.

This study found that concentrated clusters of noradrenergic nerve fibers form a longitudinal linear system in rat skin, particularly innervating arrector pili muscles.

This review discusses mesenchymal stem cells' role in tissue regeneration and skin anti-aging, highlighting their migration to damaged sites and secretome effects, but reports no new clinical results.

In this study, prenatal exposure to a non-teratogenic dose of all-trans-retinoic acid showed no adverse effects on vibrissal follicle development in NMRI mice.

This study observed that alkaline phosphatase activity in dog hair follicles varied with hair cycle stages, displaying weak to negative reactions in the anagen stage, positive reactions in catagen, and strong positivity in telogen.

This overview examines the biology, origin, structure, and function of various cells and structures, such as the blood-retinal barrier and Merkel cells, and discusses their roles in disease pathogenesis, along with recent findings related to the lymph nodes' paracortex.

This review analyzed 109 articles to classify skin lesions associated with COVID-19 and their frequency during the disease, but found no conclusive evidence on long-term persistence of specific types due to rarity.

This study found that Platelet-Rich Plasma (PRP) stimulated human hair growth more effectively than other tested culture media in vitro.

This study found that induced pluripotent stem cells derived from human keratinocytes efficiently differentiated into cardiomyocytes, forming a homogeneous population with cardiac-specific molecular and functional properties, and demonstrated significant cardiac marker expression and spontaneous contraction capabilities over 15 days of differentiation induction.

In this study, eight healthy dogs showed hair and skin damage, including hair shaft fractures and skin irritation, after repeated application of Clairol Hair Dye Flaxen Blonde.

This study found that human mesenchymal stem cells overexpressing JAM-A improved hair follicle structure and hair formation in mice by reducing abnormalities such as curved and zigzagged follicles.

Mouse embryos can develop in chick embryos, but they grow smaller with some organ issues.

This study developed a bioengineering method to reconstruct embryonic dorsal skin from dissociated chick skin cells, allowing feather buds to form and grow in vitro, influenced by epithelial-mesenchymal interactions.

This study developed a detailed classification system for functional androgenization in females that may enhance diagnosis and personalized treatment by identifying individual dysfunctions.

The document explains how hair follicles develop in humans.

This review discusses the shared molecular and cellular processes in the early development stages of skin appendages like hair follicles, teeth, and mammary glands, reporting no new results.

This study found that the progression of fetal skin development, marked by key features like the appearance of hair follicles and eccrine sweat glands, can help determine fetal age and predict congenital skin diseases.

This article reviews advances in feather development and regeneration, including pattern formation, stem cell biology, and evolution, but presents no new experimental results.

Experiments can shape how feathers grow and develop.

This review discusses the potential regulation of signal transduction pathways by microRNAs in animal cells, aiming to identify biological processes that may be influenced by miRNA-mediated regulation, but it reports no new experimental outcomes.

This review discusses the biology and development of skin melanocytes, but reports no new clinical findings.

This review explores the autoimmune hypothesis of alopecia areata and the possible genetic and melanogenesis-associated autoantigens, but reports no new clinical findings.

This study found that melatonin treatment increased epidermal thickness, subcutaneous fat, and dermal-related factors in postmenopausal rats, suggesting benefits for skin structure after menopause.

This article provides an overview of the biological process of skin wound healing, detailing the roles of keratinocytes, dermal cells, and trichogenesis without presenting new experimental results.

This study found that activin B promotes the initiation and development of hair follicles in both cultured and neonatal mouse skin models.

The researchers reported that finasteride treatment in male rats may lead to changes in antioxidant enzyme activity in their offspring's epididymis, potentially affecting sperm maturation.