research Hair Pull Test: Evidence-Based Update and Revision of Guidelines
The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
Search
for
Sort by
Research
120-150 / 264 results 
research Commercial and Open-Source Systems
Commercial and open-source light sheet microscopy systems have advanced through engineer-scientist collaborations, improving imaging quality.
research A Guide for Building Biological Pathways with Two Case Studies: Hair and Breast Development
The document explains how to create detailed biological pathways using genomic data and tools, with examples of hair and breast development.
research Effects of Guasha on Histomorphology of Scraped Skin and Expression of Calcitonin Gene-Related Peptide and Substance P in Rats
Guasha changed rat skin appearance and blood vessels temporarily without affecting certain nerve proteins or fiber structure.
research Age-Related Differences for Male-to-Female Transgender Patients Undergoing Gender-Affirming Surgery
Younger transgender women have surgery earlier, are mostly attracted to men, and show more preoperative depression that improves after surgery compared to older transgender women.
research Effect of Alpha Lipoic Acid on Smoking-Induced Skin Damage
Alpha Lipoic Acid helps protect skin from smoking damage.
research Penetration of Different Molecular Weight Hydrolysed Keratins into Hair Fibres and Their Effects on the Physical Properties of Textured Hair
Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
research The Structure of the Amorphous Matrix of Keratins
Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
research The Peach RGF/GLV Signaling Peptide pCTG134 Is Involved in a Regulatory Circuit That Sustains Auxin and Ethylene Actions
The peach gene CTG134 helps control the interaction between auxin and ethylene, which could lead to new agricultural chemicals.
research An Open-Label Evaluator Blinded Study of the Efficacy and Safety of a New Nutritional Supplement in Androgenetic Alopecia: A Pilot Study
The supplement may help hair growth and is safe, but more research is needed.
research Poly (ɛ-Caprolactone)–Chitosan–Poly (Vinyl Alcohol) Nanofibrous Scaffolds for Skin Excisional and Burn Wounds in a Canine Model
The scaffolds significantly sped up wound healing in dogs and were safe.
research Skipping of Exons by Premature Termination of Transcription and Alternative Splicing Within Intron-5 of the Sheep SCF Gene: A Novel Splice Variant
A new mRNA variant of the SCF gene in sheep skin produces a shorter, different protein.
research Qualitative Investigation of Fresh Human Scalp Hair with Full-Field Optical Coherence Tomography
Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
research The Endoscopic Brow Lift
The document concludes that the endoscopic brow lift is a less invasive cosmetic surgery that requires careful technique and patient selection to achieve lasting, aesthetically pleasing results.
research AGD1, A Class 1 ARF-GAP, Acts in Common Signaling Pathways with Phosphoinositide Metabolism and the Actin Cytoskeleton in Controlling Arabidopsis Root Hair Polarity
AGD1 is important for root hair development in Arabidopsis, working with phosphoinositide signaling and the actin cytoskeleton.
research Reduction Mechanism of L-Cysteine on Keratin Fibers Using Microspectrophotometry and Raman Spectroscopy
L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
research Ectopic Expression of a Truncated Isoform of Hair Keratin 81 in Breast Cancer Alters Biophysical Characteristics to Promote Metastatic Propensity
A specific hair protein variant increases the spread of breast cancer and is linked to worse survival rates.
research Endocrine Treatment of Transsexual Persons: An Endocrine Society Clinical Practice Guideline
The guideline recommends mental health involvement in diagnosing gender identity disorder and outlines hormone and surgical treatment protocols, emphasizing safety, informed consent, and long-term monitoring.
research Pilar Cyst From a Maxillofacial Surgeon's Perspective: A Case Report and Review of Literature
A man had a benign pilar cyst on his face, which is rare and was successfully removed by surgery.
research Structural Mechanism of TRPV3 Channel Inhibition by the Plant-Derived Coumarin Osthole
Osthole inhibits the TRPV3 channel by binding to specific sites, potentially aiding drug development for skin diseases and cancers.
research Dermal Fibrosis in Male Pattern Hair Loss: A Suggestive Implication of Mast Cells
Mast cells might contribute to hair loss by causing skin thickening.
research Direct Observation of Hair Components Involved in Formation of Permanent Waves
Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.
research Histopathological Examination of Hair Matrix Cysts
Hair matrix cysts are rare skin nodules with unique features, often needing surgical removal.
research Indications for Peripheral and Central Sensitization in Patients With Chronic Scalp Pain (Trichodynia)
Chronic scalp pain in trichodynia involves both body-wide and localized increased pain sensitivity.
research Pharmacognostic Evaluation of Sphagneticola Calendulacea (L.) Pruski: Leaves
The evaluation of Creeping Daisy leaves found important characteristics and compounds that support its use in medicine.
research Clinical Signs of Hair Damage
Hair damage shows as fragility, dullness, and discoloration, varies by ethnicity, and is worsened by cosmetic procedures and diseases.
research PH Dependence of the Coiled-Coil Structure of Keratin Intermediate Filament in Human Hair by 13C NMR Spectroscopy and the Mechanism of Its Disruption
Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
research Diagnostic Modalities in Trichology: An Update
New hair and scalp disease diagnosis methods are important for correct treatment.
research Vestibular Hair Cell Regeneration and Restoration of Balance Function Induced by Math1 Gene Transfer
Gene therapy with the Math1 gene helped regenerate balance-related cells and improve balance in mice.
research Caffeine and Its Pharmacological Benefits in the Management of Androgenetic Alopecia: A Review
Caffeine improves hair growth, thickness, and reduces shedding.