Results 121 to 130 of about 61,869 (301)

Towards Precision Medicine in Clinical Practice: Alinity C vs. UHPLC-MS/MS in Plasma Aripiprazole Determination

open access: yesPharmaceutics
Therapeutic drug monitoring improves the benefit–risk balance of antipsychotic therapy. Ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS) is considered the gold-standard method for measuring plasma drug concentrations ...
Francisco José Toja-Camba   +9 more
doaj   +1 more source

Pharmacokinetics and Metabolism Research of Shenkang Injection in Rats Based on UHPLC-MS/MS and UHPLC-Q-Orbitrap HRMS

open access: yesDrug Design, Development and Therapy, 2020
Xiaofang Jiang,1,* Lin Zhou,2,3,* Lihua Zuo,2,3 Xiaohui Wang,4 Yingying Shi,2,3 Xiangyu Du,5 Jun Zhang,2,3 Liwei Liu,2,3 Zhuolun Li,2,3 Lianping Xue,2,3 Xin Liu,1 Zhi Sun2,3 1Department of Traditional Chinese Medicine, The First Affiliated Hospital of ...
Jiang X   +11 more
doaj  

Evaluation of an in-capillary approach for performing quantitative cytochrome P450 activity studies [PDF]

open access: yes, 2018
An automated in-capillary assay requiring very small quantities of reagents was developed for performing in vitro cytochrome P450 (CYP450) drug metabolism studies. The approach is based on the following: (i) hydrodynamic introduction of nanoliter volumes
Curcio, R.   +3 more
core  

Compositional Characterization, Quality Parameters, and Physicochemical and Bioactive Properties of Pequi (Caryocar brasiliense) Oils From Xingu and Cerrado in Mato Grosso, Brazil

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Cerrado oil is richer in MUFA and antioxidant compounds, while Xingu oil shows higher SFA and enhanced oxidative stability, reinforcing the potential of pequi oil as a sustainable bioactive ingredient. ABSTRACT Pequi (Caryocar brasiliense) is a native fruit widely distributed in Brazilian biomes, specially in Cerrado, known for its high oil yield and ...
Dhayna O. Sobral   +8 more
wiley   +1 more source

Determination of α-hydroxy acids in cosmetics by UHPLC-MS/MS

open access: yesShanghai yufang yixue
ObjectiveTo establish a UHPLC-MS/MS quantitative method for the determination of glucuronic acid, tartaric acid, glycolic acid, malic acid, lactic acid, citric acid, DL-2-hydroxybutyric acid sodium, mandelic acid, benzilic acid, hydroxycaprylic acid ...
RU Ge   +5 more
doaj   +1 more source

Inosine‐Triphosphate‐Pyrophosphatase Activity as a Potential Predictor of Methotrexate Remission in Juvenile Idiopathic Arthritis

open access: yesArthritis &Rheumatology, EarlyView.
Objective Methotrexate (MTX) is the first‐line therapy for juvenile idiopathic arthritis (JIA), but up to 40% of patients do not respond to it. Low inosine triphosphate pyrophosphatase (ITPA) activity has been associated with reduced clinical remission. We investigated the role and underlying mechanisms of ITPA in vitro. Methods ITPA enzymatic activity
Sofia Sindici Forgiarini   +19 more
wiley   +1 more source

Mapping opioid exposure through prescription data and postmortem analysis of opioid drugs in multiple tissues

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Background and Purpose Although opioids are central to end of life (EoL) care, tissue‐level opioid exposure remains poorly understood. The objective of this study was to characterize the relationship between prescription‐derived morphine equivalent daily dose (MEDD) and measured morphine concentrations across multiple organs.
Niamh Higgins   +23 more
wiley   +1 more source

Development of Raman Spectroscopy and Machine Learning Methods for Protein Aggregate Quantification: Application to BSA in Chromatographic Processes

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Protein aggregation poses a significant risk to biopharmaceutical product quality, as even minor amounts of oligomeric species can compromise efficacy and safety. Rapid and reliable detection of protein aggregates thus remains a major challenge in biopharmaceutical manufacturing.
Jakob Heyer‐Müller   +4 more
wiley   +1 more source

Dried blood spot analysis in antidoping: Technical challenges, analytical advances, and future perspectives

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Dried blood spot (DBS) analysis enables minimally invasive blood collection with strong analyte stability and simplified logistics, supporting anti‐doping applications beyond traditional matrices. Recent advances address hematocrit, volume variability, and matrix effects while expanding coverage to steroid esters, World Anti‐Doping Agency‐listed ...
Jihyun Yoon   +4 more
wiley   +1 more source

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