research Variation in Human Hair Ultrastructure Among Three Biogeographic Populations
Different populations have distinct hair structures related to their ancestry.
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research Quantification of Reproductive Hormones in Hair of Captive Adult Brown Bears and Their Application as Indicators of Sex and Reproductive State
Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
research Biocompatibility Of Kaps-Depleted Residual Hair
KAP-depleted hair causes less immune response and is more biocompatible for implants.
research Effect of Cosmetic Hair Treatment and Natural Hair Color on Hair Testosterone Concentrations
Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
research Hair Through the Female Life Cycle
Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.
research Segmental Hair Analysis - A Retrospective Testosterone Diary?
Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
research KGS1 Kamishoyosangoshimotsuto Extract Tablets Improved Skin Condition and Hair Properties
KGS1 tablets improved skin and hair health.
research Microbiome in the Hair Follicle of Androgenetic Alopecia Patients
Hair loss patients have different microbes in hair follicles, possibly affecting hair loss.
research Testosterone-Like Immunoreactivity in Hair Measured in Minute Sample Amounts: A Competitive Radioimmunoassay with an Adequate Limit of Detection
The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
research Light Microscopic Hair Abnormalities in Children: Retrospective Review of 119 Cases in a 10-Year Period
Over half of the children had abnormal hair under a microscope, with many having genetic hair conditions.
research Alterations in Pattern Baldness According to Sex: Hair Metabolomics Approach
Hair loss causes differ between men and women due to changes in hormone levels and inflammation-related pathways.
research Improving Stable Isotopic Interpretations Made From Human Hair Through Reduction of Growth Cycle Error
The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
research Stability of Opiates in Hair Fibers After Exposure to Cosmetic Treatment
Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
research Hair Greying Is Associated With Active Hair Growth
White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.
research Investigation by Imaging Mass Spectrometry of Biomarker Candidates for Aging in the Hair Cortex
Certain molecules in hair change with age and could be used for cosmetic treatments.
research Towards Best Practice in Hair Metabolomic Studies: Systematic Investigation on the Impact of Hair Length and Color
Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
research Caffeine Content in Newborn Hair Correlates with Maternal Dietary Intake
Newborns' hair shows how much caffeine their mothers drank during pregnancy.
research Sequential Cyclic Changes of Hair Roots Revealed by Dermoscopy Demonstrate a Progressive Mechanism of Diffuse Alopecia Areata Over Time
Dermoscopy shows that diffuse alopecia areata progresses through specific hair growth stages.
research Hair Diameter Measurements for Planning Follicular Unit Extraction Surgery: Is There a Correlation Between the Micrometer Caliper and Scanning Electron Microscopy Findings?
The micrometer caliper is a reliable tool for measuring hair diameter for FUE surgery.
research A Mutation in the Type II Hair Keratin KRT86 Gene in a Han Family with Monilethrix
A new mutation in the KRT86 gene was found to cause the hair disorder monilethrix in a Han family.
research Reimagining Hair Science: A New Approach to Classify Curly Hair Phenotypes via New Quantitative Geometrical and Structural Mechanical Parameters
New methods to classify curly hair types were developed based on shape and strength.
research Detection of Cortisol, Estradiol, and Testosterone in Archaeological Human Hair from the Dakhleh Oasis, Egypt
Ancient hair can preserve hormones, revealing health and fertility insights.
research Peer Review of Human Hair Shaft Proteomic Profiling: Individual Differences, Site Specificity, and Cuticle Analysis
The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.
research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
research Use of Hair Cortisol as a Biomarker for Chronic Stress in Pregnancy
Hair cortisol could be a marker for chronic stress in pregnancy, but depression affects cortisol levels differently.
research Hair Steroid Profiling Reveals Racial Differences in Male Pattern Baldness Between Korean and Caucasian Populations
Korean and Caucasian men with male pattern baldness have different hair steroid levels.
research Scanning Electron Microscopy Approach for Evaluation of Hair Dyed with Lawsonia Inermis Powder: In Vitro Study
Henna dye improves hair cuticle and thickness but effects vary by hair type and health.
research A Review on Forensic Toxicological Analysis of Drugs in Hair Using Various Instrumental Techniques
Hair analysis is better than urine and blood for detecting past drug use.
research Reimagining Hair Science: A New Approach to Classify Curly Hair Phenotypes via New Quantitative Geometrical and Structural Mechanical Parameters
A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.
research Disorders of Hair in Children
The document concludes that accurate diagnosis and understanding the type of hair disorder are crucial for treating hair loss in children.