6 citations
,
July 2005 in “Farmaco” This study developed a micellar electrokinetic capillary chromatography method for determining minoxidil in Rogaine and generic products, offering a simple and efficient alternative to HPLC.
49 citations
,
December 2017 in “Journal of pharmaceutical and biomedical analysis” This study developed and validated a high-resolution mass spectrometry method to screen for prohibited substances and analyze six endogenous steroids in urine according to World Antidoping Agency requirements, demonstrating its effectiveness for antidoping analysis.
January 2021 in “Scandinavian journal of clinical and laboratory investigation” This study presents a method using liquid chromatography tandem mass spectrometry to quantify biotin in plasma and serum, and explores how high biotin intake can interfere with diagnostic immunoassays that utilize biotin-streptavidin technology, potentially leading to misdiagnosis of endocrine disorders.
823 citations
,
February 1998 in “Analytical Chemistry” Method detects finasteride in plasma at very low concentrations.
7 citations
,
September 2024 in “Scientific Reports” This study suggests that sebum samples can be effectively stored and transported with less stringent requirements than liquid samples, making them suitable for remote or at-home collection before clinical analysis.
27 citations
,
April 2013 in “Reviews in endocrine and metabolic disorders” 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.
15 citations
,
June 2018 in “Journal of Chromatographic Science” This study successfully developed a method to measure four flavonoids from Platycladus orientalis leaves in rat plasma, which was used in a pharmacokinetic study on healthy rats.
7 citations
,
November 2022 in “Toxics” This study developed and validated a highly sensitive LC-MS/MS method for detecting multiple steroid hormones in urine and serum/plasma, demonstrating its potential for use in large-scale biomonitoring studies.
4 citations
,
May 2021 in “Molecules” This study suggests that analyzing hair samples with a liquid chromatography-mass spectrometric assay may offer a reliable method to measure average quarterly vitamin D levels, potentially complementing blood tests.
3 citations
,
July 2016 in “Tropical Journal of Pharmaceutical Research” This study found that the proposed LC-MS/MS method accurately quantified the drug content in split tablets of finasteride and terbinafine, revealing significant variability and suggesting that non-scored tablets should not be split.
48 citations
,
January 2018 in “Scientific Reports” This pilot study found that hair metabolome analysis may help differentiate pregnancy complications from healthy pregnancies by revealing significant metabolite differences between trimesters.
5 citations
,
January 2012 in “PubMed” This study developed and validated a reliable method using chromatography and mass spectrometry to accurately measure finasteride levels in human plasma.
In this study, a validated chromatographic method demonstrated the ability to simultaneously analyze gemcitabine and olaparib in pancreatic cancer tissues, supporting the advancement of pharmaceutical formulations combining these drugs, particularly for patients with BRCA mutations.
36 citations
,
December 2002 in “Experimental dermatology” This study found that procyanidin B-3, a compound isolated from barley extract, may promote hair growth by enhancing hair epithelial cell growth and counteracting TGF-β1's growth-inhibiting effects in vitro and in vivo.
8 citations
,
January 2011 in “Organic and Biomolecular Chemistry” Minoxidil reacts to nitrosation 7 times more than phenol, mainly due to its -NH₂ groups, leading to the creation of N-nitrosominoxidil.
June 2025 in “Indian Journal of Heterocyclic Chemistry” In this study, researchers developed a precise and rapid method for simultaneously analyzing minoxidil and finasteride in local therapeutic formulations, ensuring that the excipients did not interfere, making it suitable for routine quality control.
27 citations
,
July 2001 in “Journal of Pharmaceutical and Biomedical Analysis” Finasteride remains stable for two years with proper storage.
20 citations
,
August 2014 in “Talanta” 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.
14 citations
,
May 2020 in “Drug Testing and Analysis” This study reports that hair analysis could potentially monitor metformin use in diabetic patients, suggesting a possible correlation between daily dose and concentration in dark hair but not in light hair.
7 citations
,
July 2021 in “Molecules/Molecules online/Molecules annual” This study demonstrated that an LC/MS-MS method could effectively detect and quantify the vitamin B3 vitamer nicotinamide in human hair, suggesting its potential use for long-term deficiency examination.
3 citations
,
May 1990 in “Journal of Steroid Biochemistry” 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.
November 2025 in “Journal of Laboratory Medicine” 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.
December 2023 in “Annals of phytomedicine” This study reports that dutasteride, used alone or with tamsulosin, effectively reduces acute urine retention and surgery risk in men with benign prostatic hyperplasia, and may lower prostate cancer incidence, suggesting potential chemopreventive benefits.
January 2023 in “Brazilian Journal of Pharmaceutical Sciences” This study concluded that the liquid chromatography-mass spectrometry method developed is viable for accurately quantifying spironolactone and its metabolite canrenone in plasma despite interference from plasma components.
March 2021 in “Juniper Online Journal Material Science” In this study, L-cysteine treated with the Trivedi Effect® showed significantly increased isotopic abundance ratios, which may enhance its stability and shelf-life.
This study observed that, after 90 hours of light exposure, Finasteride retained 57% of its concentration, whereas Diclofenac and Naproxen retained only 12% and 9%, respectively.
157 citations
,
May 2021 in “Endocrine Reviews” This review discusses recent advancements in understanding and managing congenital adrenal hyperplasia, including improvements in screening, diagnostics, and potential genetic and cell-based treatments, but reports no new clinical findings.
21 citations
,
November 2010 in “Talanta” This study reported the development of a novel and reliable liquid chromatographic method to measure testosterone and epitestosterone in human urine, offering sensitive detection for doping control.
20 citations
,
December 1995 in “Journal of Chromatography B: Biomedical Sciences and Applications” Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.
14 citations
,
July 2017 in “Monatshefte für Chemie - Chemical Monthly” This review discusses the analysis of pharmaceutical relics from prehistoric times to the twentieth century and emphasizes the need for a multifaceted approach, but it presents no new experimental results.