research Tryptophan in Human Hair: Correlation with Pigmentation
Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
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research Skin Permeation of Curcumin Nanocrystals: Effect of Particle Size, Delivery Vehicles, and Permeation Enhancer
Smaller curcumin nanocrystals penetrate skin better, but additives and particle size affect absorption and accumulation.
research 3D Bioprinting of a Gelatin-Alginate Hydrogel for Tissue-Engineered Hair Follicle Regeneration
The new 3D bioprinting method successfully regenerated hair follicles and shows promise for treating hair loss.
research Development and Maintenance of Epidermal Stem Cells in Skin Appendages
Epidermal stem cells create and maintain skin structures like hair and nails through specific signaling pathways and vary by location and function.
research Methylenetetrahydrofolate Reductase C677T Mutation in Patients with Alopecia Areata in Turkish Population
The MTHFR C677T mutation may increase the risk of alopecia areata in the Turkish population.
research Extractable Substances from Human Hair: A Discussion About the Origin of the Holes
Holes in mature hair are likely caused by the removal of substances during hair care.
research Increasing the Percutaneous Absorption and Follicular Penetration of Retinal by Topical Application of Proretinal Nanoparticles
Proretinal nanoparticles improve skin absorption and reduce irritation of topical retinoids.
research Circulating Testosterone and Feather-Gene Expression of Receptors and Metabolic Enzymes in Relation to Melanin-Based Coloration in the Barn Owl
Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
research Beta-Catenin Is Involved in Oleanolic Acid-Dependent Promotion of Proliferation in Human Hair Matrix Cells in an In Vitro Organ Culture Model
Oleanolic acid promotes hair growth by increasing cell proliferation through the Wnt/β-catenin pathway.
research Metabolic Teamwork in the Stem Cell Niche
Paneth cells and intestinal stem cells work together metabolically for stem cell function and regeneration.
research A Selection of Eleven Plants Used as Traditional Polynesian Cosmetics and Their Development Potential as Anti-Aging Ingredients, Hair Growth Promoters, and Whitening Products
Eleven traditional Polynesian plants show potential for natural anti-aging, hair growth, and skin brightening products.
research EGFR Controls Hair Shaft Differentiation in a p53-Independent Manner
EGFR helps control how hair grows and forms without needing p53 protein.
research PEO-b-PCL Grafted Niosomes: The Cooperativity of Amphiphilic Components and Their Properties In Vitro and In Vivo
The new drug delivery systems made with surfactants and block polymers are stable and not toxic.
research Therapeutic Efficacy and Safety of Kang-Ai Injection Combined with Platinum-Based Doublet Chemotherapy in Advanced NSCLC: A Meta-Analysis
Kang-ai injection with platinum-based chemotherapy improves tumor response and immune function while reducing side effects in advanced lung cancer.
research Effect of a Transcriptionally Inactive or Absent Vitamin D Receptor on Beta-Cell Function and Glucose Homeostasis in Mice
Mice without active or present vitamin D receptors maintain normal blood sugar control and islet gene expression when calcium levels are normal.
research Generation of Comparative Pharmacophoric Model for Steroidal 5α-Reductase I and II Inhibitors: A 3D-QSAR Study on 6-Azasteroids
The study created a model to help design new inhibitors for steroidal 5α-reductase enzymes.
research Synthesis of Porcine pCLCA2 Protein During Late Differentiation of Keratinocytes of Epidermis and Hair Follicle Inner Root Sheath
pCLCA2 protein may help maintain skin structure and function.
research Laminin-511, Inducer of Hair Growth, Is Down-Regulated and Its Suppressor in Hair Growth, Laminin-332 Up-Regulated in Chemotherapy-Induced Alopecia
Chemotherapy-induced hair loss is partly due to decreased laminin-511 and increased laminin-332.
research Conditioned Media-Integrated Microneedles for Hair Regeneration Through Perifollicular Angiogenesis
A new microneedle patch effectively promotes hair growth by increasing blood vessel formation around hair follicles.
research Cell Death in Skin Function, Inflammation, and Disease
Different types of cell death affect skin health and inflammation, and understanding them could improve treatments for skin diseases.
research Minoxidil-Loaded Hyaluronic Acid Dissolving Microneedles to Alleviate Hair Loss in an Alopecia Animal Model
Minoxidil-loaded hyaluronic acid microneedles can effectively increase hair growth and could be a promising treatment for hair loss.
research Determination of Protonation State in Molecular Salt of Minoxidil and 2,4-Dihydroxybenzoic Acid Through a Combined Experimental and Theoretical Study: Influence of Proton Transfer on Biological Activities
The MXD/24HA salt is more effective for hair growth than raw MXD.
research Stem Cells from Human Exfoliated Deciduous Teeth Promote Hair Regeneration in Mice
Baby teeth stem cells can help grow hair in mice.
research Within-Person Changes of Cortisol, Dehydroepiandrosterone, Testosterone, Estradiol, and Progesterone in Hair Across Pregnancy, with Comparison to a Non-Pregnant Reference Group
Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
research Ex-Vivo Measurement of Scalp Follicular Infundibulum Delivery of Zinc Pyrithione and Climbazole from an Anti-Dandruff Shampoo
The method shows that zinc pyrithione and climbazole from anti-dandruff shampoo effectively reach the scalp.
research A Human Vitamin D Receptor Mutation Causes Rickets and Impaired Th1/Th17 Responses
A vitamin D receptor mutation causes rickets and affects immune responses.
research Establishment of Type II 5α-Reductase Over-Expressing Cell Line as an Inhibitor Screening Model
A reliable model for screening type II 5α-reductase inhibitors was created and validated.
research Identification and Characterization of Four Immune-Related Signatures in Keloid
Four specific genes are linked to keloid formation and could be potential treatment targets.
research Alpinetin Promotes Hair Regeneration via Activating Hair Follicle Stem Cells
Alpinetin helps grow hair by turning on hair stem cells and is safe for use.
research Age-Related Changes in Endogenous Glucocorticoids, Gonadal Steroids, Endocannabinoids, and Their Ratios in Plasma and Hair from Male C57BL/6 Mice
Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.