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This study identified optimal parameters for extracting oil from Urtica dioica roots to maximize phytosterol content, using corn oil and a 1:5 raw material-extract ratio over a 6-hour maceration period.

This study describes a capillary GC method for accurately measuring spermidine levels in hair lotions, confirming its precision and specificity for this application.

This study established a sensitive and reproducible method for determining the levels of four organic solvents in finasteride raw materials, meeting the requirements of the Chinese Pharmacopeia.

This study found that using headspace capillary gas chromatography effectively determined the levels of residual organic solvents, including chloroform and dichloromethane, in finasteride with good separation and detection limits.

This study established a reliable method for determining residual solvents in Finasteride using gas chromatography.

This study developed and validated a Gas Chromatography-Flame Ionization Detection method for assessing minoxidil, which shows good precision, accuracy, and specificity for quality control and pharmacokinetic studies.

This study identified the main secondary metabolites in Ziziphus jujuba seeds and confirmed that UPLC-MS/MS and GC-MS effectively demonstrate their pharmaceutical quality.

This study found that the methanolic extract of Carthamus caeruleus roots significantly reduced inflammation, promoted wound healing, and enhanced hair growth in experimental models, supporting its traditional use in Northern Algeria as a skincare remedy.

Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.

This study suggests that while hair analysis using GC-MS is a sensitive method for detecting cocaine ingestion, it may not reliably indicate the amount, timing, or duration of drug use due to interindividual variability and multiple incorporation mechanisms.

This study found that hydro-alcoholic Eclipta alba extract may have anticancer and multidrug resistance-reversal effects in animal models, suggesting potential as an adjunctive agent in tumor chemotherapy.

This study found that diagnosing non-classical 3 beta-hydroxysteroid dehydrogenase deficiency solely based on elevated serum or urinary 5-ene-steroids may not be reliable.

This study concluded that rosemary essential oil rich in terpenes was successfully extracted using vacuum-assisted hydrodistillation, and Solid Phase Micro Extraction was superior for identifying volatile compounds compared to direct injection.

This study found that volatile compounds from Bacillus subtilis strain WM13-24 improved root development in Arabidopsis by influencing auxin signaling.

This study reported a simple and validated gas chromatography method to accurately measure finasteride in tablets, showing equivalency to the official method with no significant differences.

This study utilized a novel mass spectrometry imaging technique to demonstrate that argan, avocado, and coconut oils are incorporated into hair fibers during cosmetic treatments, supporting their potential use in formulations for enhancing hair health and treating conditions like alopecia.

This study developed a validated gas chromatography–tandem mass spectrometry assay to assess sex steroid hormones in cerebrospinal fluid, finding substantial levels of DHEA, androstenedione, and testosterone, with strong correlations to serum levels, providing insight into sex steroid dynamics in the human CNS.

This article discusses fluconazole's pharmacological and physicochemical properties and methods for its analysis, but reports no new clinical results.

This study found that valproic acid may interfere with the leucine metabolic pathway by inhibiting 3-methylcrotonyl-CoA carboxylase and biotinidase, which could contribute to side effects like skin rash and hair loss in patients.

This study found that undiluted mint leaf extract effectively inhibited multidrug-resistant Staphylococcus aureus and killed Culex pipiens larvae, suggesting its potential as a biocontrol strategy around hospitals.

This review discusses the pharmacological properties and analytical methods for determining fluconazole but reports no new experimental findings.

This study identified significant metabolic differences between volar and non-volar skin in mice, revealing distinct amino acid, sugar, and nucleotide metabolism patterns associated with skin type differentiation.

This study found that among bodybuilder-intended drugs from the black market, 33.8% of labeled products and 52.5% of steroidal oily solutions contained ingredients not matching their labels.

This study identified 64 chemical compounds in the L. luteus L. plant, including several fatty acids and coumarin, highlighting the pharmacognostic potential of yellow lupine.

The document concludes that inflammation markers can be used in diabetes, vitamin D3 affects immune pathways, hyperthyroidism changes hormone levels, androgen levels help diagnose Adrenocortical Carcinoma, erectile dysfunction is linked to diabetes, hypogonadism is common in HIV-infected males, and hormones can be biomarkers for various conditions.

This study concluded that the best approach for detecting Androsta-1,4,6-triene-3,17-dione administration in horses is monitoring the metabolites M1b or M4 in urine, detectable up to 77 hours post-administration.

This study developed a new HPLC method for detecting prohibited substances like minoxidil and hydrocortisone in cosmetic products, achieving high sensitivity and successful application to real-world samples.

Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.

This study validated a highly selective and fast LC–MS/MS method for accurately measuring levels of tadalafil and finasteride in human plasma, adhering to international bioanalytical guidelines.

This study identified previously unknown phase I and phase II metabolites of finasteride in human bile and urine using a specialized bile collection technique and advanced mass spectrometry analysis.