research Influence of Chemical Straightening on the Stability of Drugs of Abuse in Hair
Chemical hair straightening significantly reduces detectable drug levels in hair.
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research Salivary testosterone levels in infertile men
Men with low or no sperm count have lower salivary testosterone levels, and saliva testing can measure their testosterone well.
research Nitrogen and carbon isotope signatures in cattle hair
Cattle hair isotope analysis can reveal diet and farm system characteristics.
research Penetration of Minoxidil from Ethanol/Propylene Glycol Solutions: Effect of Application Volume and Occlusion
More ethanol increases minoxidil delivery, but too much lowers efficiency.
research Impact of Preservation Solutions on the Trichogenicity of Hair Micrografts Ascertained by Dermal Papilla Gene Expression
Chilled ATPv-supplemented saline best preserves hair grafts' key genes.
research Effects of botulinum toxin type A on histamine-induced itch and vasomotor responses in human skin
Botulinum toxin type A reduces itch and inflammation from histamine and may help treat certain skin conditions and hair loss.
research Remission of hair loss and induction of hair regrowth by botulinum neurotoxin A in mice
Botulinum toxin A helped stop hair loss and grow new hair in mice.
research Anhidrotic effect of intradermal injections of botulinum toxin—A comparison of different products and concentrations
Different botulinum toxin products and concentrations can effectively reduce sweating, itching, bladder pressure, hair loss, and muscle spasms.
research Three-dimensional reconstructions of mechanosensory end organs suggest a unifying mechanism underlying dynamic, light touch
Dynamic, light touch is sensed through a common mechanism involving Piezo2 channels in sensory axons.
research Anticancer drugs in surface waters
Anticancer drugs are increasingly found in surface waters, and their long-term environmental effects are not well understood, requiring better testing methods.
research Androgen Therapy in Women: A Reappraisal: An Endocrine Society Clinical Practice Guideline
The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.
research Three-Month Treatment With a Long-Acting Gonadotropin-Releasing Hormone Agonist of Patients With Benign Prostatic Hyperplasia: Effects on Tissue Androgen Concentration, 5α-Reductase Activity and Androgen Receptor Content*
A three-month treatment with a GnRH agonist significantly lowered androgen levels and 5α-reductase activity in men with benign prostatic hyperplasia.
research Androgen Profiling by Liquid Chromatography–Tandem Mass Spectrometry (LC-MS/MS) in Healthy Normal-Weight Ovulatory and Anovulatory Late Adolescent and Young Women
The research found that anovulatory young women have higher androgen and hormone levels than those who ovulate, suggesting immature hormonal regulation rather than a specific condition.
research Prevalence of Hyperandrogenic States in Late Adolescent and Young Women: Epidemiological Survey on Italian High-School Students
Many young Italian women have hyperandrogenic disorders like PCOS, which are linked to age, body weight, and insulin resistance.
research Revisiting hyper- and hypo-androgenism by tandem mass spectrometry
The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.
research Estuarine bed-sediment-quality data collected in New Jersey and New York after Hurricane Sandy, 2013
Hurricane Sandy increased contamination in estuarine sediments in New Jersey and New York.
research 5α-Reductase Inhibitors, Chemical and Clinical Models
Researchers developed a model to predict how well certain compounds can block an enzyme related to hair loss and prostate issues, suggesting a 50 mg dose of finasteride might be effective based on lab and body data.
research Prevalence of hyperandrogenism in Iraqi women with polycystic ovary syndrome
Iraqi women with PCOS often have higher testosterone levels and obesity.
research Rat steroid 5α-reductase kinetic characteristics: Extreme pH-dependency of the type II isozyme in prostate and epididymis homogenates
The activity of a specific rat enzyme in the prostate and epididymis is highly dependent on the acidity level.
research LC-MS/MS improves screening towards 21-hydroxylase deficiency
LC-MS/MS is more reliable than immunoassays for diagnosing 21-hydroxylase deficiency.
research A Comprehensive Approach in Diagnosing the Polycystic Ovary Syndrome
The document concludes that diagnosing PCOS requires a thorough approach, considering various symptoms and risks, and calls for improved methods to identify PCOS types and prevent diabetes.
research Steroid Sulfatase: Molecular Biology, Regulation, and Inhibition
The enzyme steroid sulfatase is linked to breast cancer and other conditions, and inhibitors are being developed for treatment.
research Ontogenetic Transition in Fetal Wound Transforming Growth Factor-β Regulation Correlates with Collagen Organization
Fetal wound healing changes with development, affecting inflammation and collagen, which may influence scarring.
research The quantification of reproductive hormones in the 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 Mechanism of TAp73 inhibition by ΔNp63 and structural basis of p63/p73 hetero-tetramerization
ΔNp63α stops TAp73β from working in skin cancer by blocking its access to specific genes, not by directly interacting with it.
research Stable C and N isotope analysis of hair suggest undernourishment as a factor in the death of a mummified girl from late 19th century San Francisco, CA
The mummified girl likely died from undernourishment and illness.
research Metabolic and transcriptomic reprogramming during contact inhibition-induced quiescence is mediated by YAP-dependent and YAP-independent mechanisms
Quiescent cells have increased mitochondrial activity and ECM gene expression, but reduced glycolysis.
research Proteomic analysis of balding and non-balding mesenchyme-derived dermal papilla cells from androgenetic alopecia patients using on-line two-dimensional reversed phase-reversed phase LC–MS/MS
Found different proteins in balding and non-balding cells, giving insight into hair loss causes.
research Metabolomic and lipidomic atlas of human hair across its length
Human hair contains many different molecules that change along its length, influenced by personal care products.
research Quantification of biotin in plasma samples by column switching liquid chromatography – tandem mass spectrometry
The document describes a way to measure biotin in blood to prevent wrong test results in hormone level testing.