research Can the Second to Fourth Digit Ratio (2D : 4D) Be a Marker to Determine Ankylosing Spondylitis Disease Activity?
The index to ring finger ratio may indicate disease severity in female ankylosing spondylitis patients, but not in males.
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research Noninvasive method for assessing the human circadian clock using hair follicle cells
Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.
research Development and validation of a procedure for the determination of minoxidil in hair-regrowth formulations using two variants of capillary zone electrophoresis
A method was created in 2005 to identify minoxidil, a hair growth ingredient, in products using two types of capillary zone electrophoresis, and it found that most products had about 2% minoxidil.
research Insights From Liquid Chromatography-Mass Spectrometry-Measured Androgens in Indian Women With Polycystic Ovary Syndrome
Androstenedione is better than testosterone for diagnosing PCOS in Indian women.
research Kinetic analysis of LY320236: competitive inhibitor of type I and non-competitive inhibitor of type II human steroid 5α-reductase
LY320236 is a strong blocker of two enzymes that change testosterone into dihydrotestosterone and might help treat conditions related to male hormones.
research Effect of Protein 'Hair Straightener" on Hair Shaft by Scanning Electron Microscopy
Protein hair straighteners damage the hair more than hair dyes.
research Response to the article, “Evaluation of standardized scalp photography on patient perception of hair loss severity, anxiety, and treatment,” by Pathoulas et al
Combining scalp photos with hair density and caliber measurements gives a more accurate assessment of hair loss.
research Pregnenolone for the treatment of L-DOPA-induced dyskinesia in Parkinson's disease
Pregnenolone might help manage movement issues caused by Parkinson's disease treatment without reducing the medicine's effectiveness.
research A Systematic Review of 207 Studies Describing Validation Aspects of the Dermatology Life Quality Index
The Dermatology Life Quality Index is reliable and consistent but needs more diverse participant studies.
research Exploring Mechanical Niches Identified by Hair Follicle Compression and How These Transduce Proliferation and Differentiation Cues in Epidermally Derived cells.
Less stiff collagen promotes higher cell growth in hair follicles.
research Studies on the persistence of estradiol benzoate and nortestosterone decanoate in hair of cattle following treatment with growth promoters, determined by ultra-high-performance liquid chromatography–tandem mass spectrometry
Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.
research A rapid, simple, liquid chromatographic-electrospray ionization, ion trap mass spectrometry method for the determination of finasteride in human plasma and its application to pharmacokinetic study.
A new method accurately measures finasteride levels in human plasma.
research Measuring Finasteride Efficacy
Finasteride's effectiveness measured by observing hair cortex changes using a cheap and easy method.
research Cellular Senescence and Aging in Myotonic Dystrophy
Myotonic Dystrophy may age cells faster, and drugs that target aging could be potential treatments.
research Dopa oxidase activity in the hair, skin and ocular melanocytes is increased in the presence of stressed fibroblasts
Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.
research Assessment of hair loss: clinical relevance of hair growth evaluation methods
Effective hair loss assessment requires a mix of precise measurement methods.
research Analyzing the laser-light reflection from human hair fibers. I. Light components underlying the goniophotometric curves and fiber cuticle angles.
The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
research A Human Folliculoid Microsphere Assay for Exploring Epithelial– Mesenchymal Interactions in the Human Hair Follicle
HFMs can help study hair growth and test potential hair growth drugs.
research Lentiviral Arrays for Live-cell Dynamic Monitoring of Gene and Pathway Activity During Stem Cell Differentiation
The lentiviral array can monitor and predict gene activity during stem cell differentiation.
research Hair Evaluation Method: Pull Test and Wash Test
The pull test and wash test are cheap, easy methods to diagnose hair loss.
research Development and validation of a reversed-phase HPLC method for simultaneous determination of doxazosin mesylate and finasteride
Created method to measure doxazosin mesylate and finasteride together.
research Cognitive testing of a survey instrument for self-assessed menstrual cycle characteristics and androgen excess
The survey helps identify menstrual irregularities and excess male hormones, aiming to detect conditions like Polycystic Ovary Syndrome.
research Amperometric detection of minoxidil in hair lotion using a glassy carbon electrode modified with gold nanostructures
A new method accurately detects minoxidil in hair lotions, revealing discrepancies in labeled content.
research Robust coupling between the C‐tactile afferent and the hair follicle in humans
C-tactile nerves are sensitive to hair movement.
research Long-term physiological trends and their drivers: linking hair hormone concentrations with telemetry data in GPS-collared Serengeti wildebeest
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
research Validation of hair estradiol immuno-assays across the menstrual cycle in emerging adults
Hair samples can reliably show average long-term hormone levels in young women.
research Assessment of diagnostic competence of plasmatic androgens on polycystic ovary syndrome based on receiver operator characteristic curves
Free Testosterone Index, bioavailable testosterone, and androstenedione are the most accurate for diagnosing excess male hormones in PCOS.
research In vitro bioassays for androgens and their diagnostic applications
In vitro bioassays are better than traditional methods for measuring androgen activity but aren't ready for routine use yet.
research The effects of topical diazoxide on hair follicular growth and physiology of the stumptailed macaque
Diazoxide applied to the skin can increase hair growth without harmful side effects.