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In this study using live mice, researchers observed that during hair follicle regression, apoptosis in basal cells may propagate by triggering neighboring cells, potentially regulated by a gradient of pro-survival signals from stem cells, and proposed a testable mechanism to further explore this process.

This study found that hair from the vertex posterior is a reliable sampling region for detecting zolpidem intake, showing consistent drug concentration and peak position compared to other scalp regions.

This study found that inhibiting the enzyme 5α-reductase with finasteride counteracted stress-induced prepulse inhibition deficits in socially isolated rats by altering neuroactive steroid concentrations in the brain.

This study found that red galangal rhizome simplicia extract demonstrated the strongest antibacterial effect against Propionibacterium acnes among tested extracts, achieving a 31.5 mm inhibitory zone at a 20% concentration.

This study developed and validated a gradient reversed-phase liquid chromatographic method to effectively measure Finasteride and its related impurities in pharmaceutical bulk drugs, demonstrating high linearity and precision.

This article reviews how calcium and reactive oxygen species gradients and oscillations interact to promote root hair cell expansion and reports no new experimental findings.

This study observed that proretinal nanoparticles delivered significantly higher concentrations of retinal to the stratum corneum and hair follicles compared to non-particulate forms, potentially improving topical retinoid therapy.

In this study, researchers found that the expression of SLC1A6, a gene linked to calcium gradient and keratinocyte differentiation in the skin, significantly decreases with age, which may contribute to reduced skin barrier function in elderly individuals.

This study developed and validated a reliable method to measure finasteride levels in human plasma, which was successfully used to assess its pharmacokinetics after a 5 mg dose in healthy volunteers.

This study reported that in the California Ground Squirrel, certain elements bioaccumulate in hair, providing baseline data for environmental health assessments.

This study describes an analytical technique combining field-enhanced sample stacking with dispersive liquid-liquid microextraction, offering improved sensitivity for detecting finasteride and its metabolite in urine samples from patients treated for androgenetic alopecia.

This review examines ethosomal structures and their mechanisms as skin delivery systems, outlining preparation methods and applications but presents no new experimental findings.

The 1% ethyl acetate fraction ethosomal gel from Nothopanax scutellarium leaves promotes hair growth but can mildly irritate the skin.

This study found that 42% of red yeast rice dietary supplements did not list monacolin concentrations on their labels, and only half of those that did contained the declared amounts.

This study found that cortisol levels, a biomarker of chronic stress, significantly increased in the post-COVID-19 lockdown period compared to pre-lockdown and during-lockdown periods, especially among females and young adults, reflecting sustained psychological stress from the pandemic.

This study developed a protocol for callus induction and found that certain hormone concentrations enhance the production of flavonoids, phenols, and terpenes in Bituminaria bituminosa.

This study found that disrupting the microtubule cytoskeleton in Arabidopsis root hairs caused loss of growth directionality and suggested microtubules interact with calcium gradients to regulate apical growth stability.

This study developed a novel method to simultaneously measure finasteride, dutasteride, and related biomarkers in serum, finding that both drugs lowered DHT levels while increasing substrate concentrations.

In this study, researchers found that finasteride inhibits progesterone synthesis by blocking cholesterol side-chain cleavage in mouse-derived MA-10 Leydig cells, but this effect may not be evident in human or rat cells.

This study confirmed that 25(OH)D3 can be detected in hair samples from healthy young adults, but no correlation was found between hair and serum 25(OH)D3 concentrations, indicating limited potential as a standalone biomarker.

In this study, hair samples from dogs with chronic degenerative valve disease showed significantly higher concentrations of certain endocrine-disrupting chemicals compared to healthy dogs, suggesting a potential link that warrants further investigation.

This study explores how applying fundamental physics in microgravity environments could potentially double the bioavailability of space pharmaceuticals by excluding substrate concentrations during preparation, though results require validation through future experiments or clinical trials.

This study found that polymeric nanoparticles retained more minoxidil and facilitated superior drug permeation compared to lipid nanoparticles, although premature drug release affected formulation performance.

This study found that S. rautanenii bark extract has an anti-proliferative effect on D. dorotocephala, suggesting it may have potential anticancer properties when evaluated using inexpensive planaria assays.

This study found that an optimized microemulsion for minoxidil with high solubility, permeation flux, and skin deposition can be achieved with specific low and high levels of certain surfactants and co-solvents.

This study found that hMSC secretomes from umbilical cord Wharton's jelly had the most potent angiogenic effects, whereas those from adipose tissue demonstrated the weakest angiogenic potential.

This article reviews the effects of menopause on skin aging and suggests that hormone replacement therapy may help reverse some of these changes.

This study observed that topically applied RTA 408 reduced the severity of radiation-induced dermatitis in mice, with the highest dose significantly reducing and alleviating skin damage and associated inflammation.

This review examines the main absorption sites and influencing factors for orally administered drugs, highlighting variables such as solubility and gastrointestinal conditions that affect drug absorption in the small intestine and the development of effective drug delivery systems.

This study found that Puerariae Flos extract inhibited testosterone 5α-reductase and promoted hair growth in mouse models, suggesting its potential use for treating androgenic alopecia.