research Ultrastructural Localization of Hair Keratins in Human Scalp Hair Shafts as Revealed by Rapid-Freezing Immunocytochemistry.
Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.
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research The genetics of hair shaft disorders
The article explains the genetic causes and symptoms of various hair disorders and highlights the need for more research to find treatments.
research Prognosis and Management of Congenital Hair Shaft Disorders with Fragility—Part I
Some congenital hair disorders improve in childhood or with treatments like minoxidil and retinoids, while others like Netherton syndrome and trichothiodystrophy have a poor prognosis.
research Effect of ethnicity and treatments on in situ tensile response and morphological changes of human hair characterized by atomic force microscopy
Different ethnicities and treatments affect human hair strength and structure.
research Office Diagnosis of Hair Shaft Defects
The document explains how to identify different hair problems using a microscope.
research The G60S Connexin43 Mutant Regulates Hair Growth and Hair Fiber Morphology in a Mouse Model of Human Oculodentodigital Dysplasia
The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.
research Genetic interplays between Msx2 and Foxn1 are required for Notch1 expression and hair shaft differentiation
Msx2 and Foxn1 are both crucial for hair growth and health.
research Dose‐response of human follicles during laser‐based hair removal: Ex vivo photoepilation model with classification system embracing morphological and histological features
Higher light doses cause more damage to hair follicles, predicting better hair removal results.
research Control of Human Hair Growth by Neurotrophins: Brain-Derived Neurotrophic Factor Inhibits Hair Shaft Elongation, Induces Catagen, and Stimulates Follicular Transforming Growth Factor β2 Expression
Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
research Neurotrichosis: Hair‐shaft Abnormalities associated with Neurological Diseases
Hair-shaft abnormalities can indicate neurological disorders, some of which are treatable.
research Regenerative Potential of Adipose Tissue–Derived Exosomes in Treating Hair Shaft Abnormalities: A Case Report
Exosome therapy improved hair growth and quality in a child with hair issues.
research Optical coherence tomography examination of hair
OCT can effectively examine and reveal details about human hair and scalp conditions.
research Hair Shaft Damage from Heat and Drying Time of Hair Dryer
Using a hair dryer at 15 cm with continuous motion causes less damage than natural drying.
research Sebaceous Gland, Hair Shaft, and Epidermal Barrier Abnormalities in Keratosis Pilaris with and without Filaggrin Deficiency
Keratosis pilaris is often linked to genetic mutations and causes skin and hair abnormalities, regardless of those mutations.
research Hair and Scalp Dermatoscopy (Trichoscopy)
Trichoscopy is a useful tool for diagnosing and managing hair and scalp conditions, often better than traditional methods.
research Mutations in Three Genes Encoding Proteins Involved in Hair Shaft Formation Cause Uncombable Hair Syndrome
Mutations in three genes cause Uncombable Hair Syndrome, leading to frizzy hair that can't be combed flat.
research The Dermal Papilla: An Instructive Niche for Epithelial Stem and Progenitor Cells in Development and Regeneration of the Hair Follicle
The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.
research The Lysosomal Protease Cathepsin L Is an Important Regulator of Keratinocyte and Melanocyte Differentiation During Hair Follicle Morphogenesis and Cycling
Cathepsin L is essential for normal hair growth and development.
research Estrogens and Human Scalp Hair Growth—Still More Questions than Answers
The effects of estrogen on human hair growth are unclear and need more research.
research An ultrastuctural study of hair fiber damage and restoration following treatment with permanent hair dye
Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
research Variation in human hair ultrastructure among three biogeographic populations
Different populations have distinct hair structures related to their ancestry.
research The regulatory role of the tetrapeptide A cSDKP in skin and hair physiology and the prevention of ageing effects in these tissues – a potential cosmetic role
AcSDKP may help prevent skin and hair aging and promote their growth.
research Localization of Cathepsins B, D, L, LAMP-1 and .MU.-Calpain in Developing Hair Follicles.
Lysosomal proteases and cytoplasmic enzymes help hair follicle cells develop and differentiate.
research Reimagining Hair Science: A New Approach to Classify Curly Hair Phenotypes via New Quantitative Geometrical & Structural Mechanical Parameters
A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.
research 773 Generation of human hair follicle organoids in vitro and ex vivo by co-culture of primary human hair matrix keratinocytes and dermal papilla fibroblasts
Scientists successfully grew mini hair follicles using human skin cells, which could help treat baldness.
research Comparative Transcriptome Analysis of Fetal Skin Reveals Key Genes Related to Hair Follicle Morphogenesis in Cashmere Goats
Key genes and pathways crucial for hair follicle development in cashmere goats were identified, aiding fleece production improvement.
research Hair Follicle Biology and Topical Minoxidil: Possible Mechanisms of Action
Minoxidil stimulates hair growth by increasing hair thickness and prolonging growth phase.
research Hypotrichosis and Hair Loss on the Occipital Scalp
A baby girl has a hair disorder called monilethrix, causing fragile hair that may improve over time.
research Hair cosmetic alterations
The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.
research Analyzing the laser-light reflection from human hair fibers Part1: Light components underlying the goniophotometric curves and fiber cuticle angles
Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.