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This study found that coffee extraction and its active compound, caffeotannic acid, showed high enzyme inhibition activity against 5a-reductase in an in vitro model.

This study found that octahydrobenzo[c]quinolizin-3-one derivatives, particularly compound 3, were potent and selective inhibitors of the enzyme 5α-reductase type 1.

This study examines various methodological factors affecting hair cortisol concentration analysis, finding inconsistent results on the impact of factors like resuspension solution, hair weight, extraction duration, and hair-cutting method.

In this study, researchers found that TCDD exposure accelerated differentiation and altered gene expression in human epidermal cells, indicating the epidermal barrier as a target of TCDD-activated AHR.

This study optimized a screening assay to identify molecules that inhibit or enhance TRPM5 ion channel activity, which may have implications for treating dysfunctions linked to cardiac arrhythmias and diabetes.

This study found that Sithong-bao seed coat extract, with high phenolic content, exhibited the strongest antioxidant properties among certain Thai tamarind cultivars, suggesting potential for nutraceutical development.

This proof-of-concept study reported that a new, ultra-fast, one-step immunohistochemistry method improved the interpretation of Mohs surgery slides, particularly for poorly differentiated tumors.

In this study, researchers addressed the limitations of adenosine's practical application in treating inflammation, oxidative stress, and tissue repair due to its poor water solubility and low transdermal permeability. Results are not reported in the abstract.

Hair cortisol levels decrease as children age, stabilizing around age 4.

This study found that chemical hair dyes caused more significant microstructural damage to hair than high-temperature perms, as observed using a single-detector OCT system.

Some oils can penetrate hair and reduce the stickiness between fibers, but mineral oil cannot.

This study found no evidence that the tested hair dye ingredients undergo hepatic metabolism to reactive oxidized metabolites in human liver microsomes and hepatocytes.

This study suggests that the C-terminal of AHF is crucial for its binding to keratin bundles and modulating the keratin meshwork in hair follicles.

This study found that AHCC significantly reduced alopecia caused by Ara-C in neonatal rats and improved liver function affected by 6-MP and MTX in mice.

This study observed that combined treatment with thyroxine and hydrocortisone increased lipid accretion and fat cell development in hypophysectomized fetal pigs, suggesting a key role of these hormones in fetal adipogenesis.

This study measured caffeine content in ethanolic extracts of robusta coffee beans, finding 221.58 mg of caffeine per gram of extract, which aligns with known levels for Coffea canephora.

This pilot study found that Optical Coherence Tomography can non-invasively resolve hair follicle density and hair shaft and follicle diameters in patients at varying stages of hair loss.

Henna orange powder, especially with alkali, protects and colors hair better than oxidizing colorants.

In this study, the n-hexane fraction of Carthamus oxyacantha methanolic extract exhibited significant 5α-reductase inhibitory activity in vitro, suggesting potential therapeutic use for benign prostatic hyperplasia through DHT inhibition.

This study found that vesicles formed with behenyltrimethylammonium chloride, stearic acid, and hinokitiol significantly improved skin permeation of hinokitiol in vitro, which may aid in hair growth promotion.

The study observed that Carthamus tinctorius extract-loaded lipid carriers promoted hair growth in C57BL/6 mice more effectively than minoxidil, although further research on humans is needed for confirmation.

In this study, researchers developed a novel periodate oxidation method for extracting keratin micro-units from waste hair and feathers, achieving yields of 31.28% and 20.64% respectively, enhancing the stability of oil-in-water emulsions and suggesting potential for sustainable biomaterial production.

This study found petroleum ether to be more effective than methanol at extracting β-sitosterol from Eclipta alba, with higher concentrations detected using HPTLC and HPLC methods. The extracted materials contained metals within safety limits.

This article discusses using high performance liquid chromatography to optimize mobile phase composition for separating synthesis products of Finasteride, without reporting new clinical results.

This study found that Hoxc13 gene expression, influenced by melatonin, was associated with hair follicle activity in Cashmere goats, with in vitro evidence suggesting effects on genes relevant to follicle development.

This study determined that caffeine content in anticellulite gels was between 0.7% and 1.7%, and about 1.0% in hair-care products.

This study suggests that analyzing hair care product components left on hair using GC and GC-MS may provide a more objective forensic comparison than morphological examination.