research Comprehensive molecular and cellular studies suggest avian scutate scales are secondarily derived from feathers, and more distant from reptilian scales
Bird scales evolved from feathers, not reptile scales.
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research Transcriptome analyses of reprogrammed feather / scale chimeric explants revealed co-expressed epithelial gene networks during organ specification
Key genes can rewire networks, changing skin appendage types.
research Changes in Color of Hair and Feathers
Pilocarpin can cause hair regrowth and color change in some cases but not in others, and it may have side effects in animals.
research Re-Evaluating Cyclosporine A as a Hair Growth–Promoting Agent in Human Scalp Hair Follicles
Cyclosporine A promotes hair growth and prolongs the active growth phase in human hair follicles, but may work differently than in rodents.
research All Roads Go to the Nucleus: Integration of Signaling/Transcription Factor-Mediated and Epigenetic Regulatory Mechanisms in the Control of Skin Development and Regeneration
The nucleus is key in controlling skin growth and repair by coordinating signals, gene regulators, and epigenetic changes.
research 836 Applying FACS-based single cell RNA-seq to study neonatal mouse skin
Researchers improved a method to study individual cells in newborn mouse skin and found a way to assess the severity of a skin condition in humans.
research Identification of dkk4 as a target of Eda-A1/Edar pathway reveals an unexpected role of ectodysplasin as inhibitor of Wnt signalling in ectodermal placodes
Ectodysplasin inhibits Wnt signaling to help form hair follicles.
research Hox in the Niche Controls Hairy-geneity
Hox genes control hair growth patterns in mammals by regulating stem cell activity in the skin.
research Skin and hair abnormalities of Cantu syndrome: A congenital hypertrichosis due to a genetic alteration mimicking the pharmacological effect of minoxidil
Cantu syndrome, which causes excessive hair growth and skin issues, is due to a mutation in the ABCC9 gene, and understanding this could help develop new treatments for hair diseases.
research Regulation of melanocyte stem cell behavior by the niche microenvironment
The environment around melanocyte stem cells is key for hair regeneration and color, with certain injuries affecting hair color and potential treatments for pigmentation disorders.
research Delayed Puberty
A 19-year-old male with delayed puberty was successfully treated for a condition that prevents normal hormone production.
research Chemotherapy-Induced Hair Loss: The Use of Biomarkers for Predicting Alopecic Severity and Treatment Efficacy
Scalp cooling to prevent hair loss from chemotherapy works for some but not all, and studying hair damage markers could improve prevention and treatment.
research Follicular Cell Implantation: An Emerging Cell Therapy for Hair Loss
Follicular Cell Implantation might become a new treatment for hair loss and could lead to advances in organ regeneration.
research Tp63-expressing adult epithelial stem cells cross lineages boundaries revealing latent hairy skin competence
Adult stem cells with Tp63 can form hair and skin cells when placed in new skin, showing they have hidden abilities for skin repair.
research Macroenvironmental Regulation of Hair Cycling and Collective Regenerative Behavior
Hair growth is influenced by various body and external factors, and neighboring hairs communicate to synchronize regeneration.
research Rapid mechanosensitive migration and dispersal of newly divided mesenchymal cells aid their recruitment into dermal condensates
Newly divided skin cells quickly move to join skin structures due to tissue tension and specific signals.
research A Microarray-Based Analysis Reveals that a Short Photoperiod Promotes Hair Growth in the Arbas Cashmere Goat
Shorter daylight increases hair growth in Cashmere goats.
research Morphogenesis and maintenance of the 3D thymic medulla and prevention of nude skin phenotype require FoxN1 in pre- and post-natal K14 epithelium
FoxN1 gene is essential for proper thymus structure and preventing hair loss.
research Alopecia in a Viable Phospholipase C Delta 1 and Phospholipase C Delta 3 Double Mutant
Mutations in Plcd1 and Plcd3 together cause severe hair loss in mice.
research Secondary Cicatricial and other Permanent Alopecias
The document concludes that permanent hair loss conditions are complex, require early specific treatments, and "secondary permanent alopecias" might be a more accurate term than "secondary cicatricial alopecia."
research Nanotechnology in Dermatology
Nanotechnology in dermatology shows promise for better drug delivery and treatment effectiveness but requires more safety research.
research Intractable Diffuse Alopecia Caused by Multifactorial Side-Effects in Treatment of Acute Lymphocytic Leukemia: Connection to Iatrogenic Failure of Estrogen Secretion
The patient's long-term hair loss was caused by leukemia treatments and low estrogen levels, worsened by her genetic tendency for hair loss.
research Androgens and hair growth
Androgens can both increase and decrease hair growth in different parts of the body.
research Regenerative Hair Waves in Aging Mice and Extra-Follicular Modulators Follistatin, Dkk1, and Sfrp4
Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.
research Wnt/β-catenin signaling pathway activates melanocyte stem cells in vitro and in vivo
The Wnt/β-catenin pathway can activate melanocyte stem cells and may help regenerate hair follicles.
research Application of mesenchymal stem cells derived from bone marrow and umbilical cord in human hair multiplication
Bone marrow and umbilical cord stem cells can help grow new hair.
research Hair physiology and its disorders
Different hair growth problems are caused by genetic issues or changes in hair growth cycles, and new treatments are being developed.
research Defining the transcriptional signature of esophageal-to-skin lineage conversion
Adult esophageal cells can start to become like skin cells, with a key pathway influencing this change.
research Bioengineering a 3D integumentary organ system from iPS cells using an in vivo transplantation model
Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.
research Progressive Alopecia Reveals Decreasing Stem Cell Activation Probability during Aging of Mice with Epidermal Deletion of DNA Methyltransferase 1
Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.