Results 71 to 80 of about 287,149 (254)

Comparison of trapping profiles between d-peptides and glutathione in the identification of reactive metabolites

Toxicology Reports, 2015
Qualitative trapping profile of reactive metabolites arising from six structurally different compounds was tested with three different d-peptide isomers (Peptide 1, gly–tyr–pro–cys–pro–his-pro; Peptide 2, gly–tyr–pro–ala–pro–his–pro; Peptide 3, gly–tyr ...
Jaana E. Laine, Merja R. Häkkinen, Seppo Auriola, Risto O. Juvonen, Markku Pasanen   +4 more
doaj   +1 more source

Development of a physiologically‐based pharmacokinetic model for Ritonavir characterizing exposure and drug interaction potential at both acute and steady‐state conditions

CPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 523-539, March 2025.
Abstract Ritonavir (RTV) is a potent CYP3A inhibitor that is widely used as a pharmacokinetic (PK) enhancer to increase exposure to select protease inhibitors. However, as a strong and complex perpetrator of CYP3A interactions, RTV can also enhance the exposure of other co‐administered CYP3A substrates, potentially causing toxicity.
Lien Thi Ngo, Woojin Jung, Tham Thi Bui, Hwi‐yeol Yun, Jung‐woo Chae, Jeremiah D. Momper   +5 more
wiley   +1 more source

In vitro and in vivo metabolism profiles of cathinone and pseudoephedrine: Discrimination between khat and pseudoephedrine uses

Journal of Forensic Sciences, EarlyView.
Abstract In the present study, the metabolism of khat (Catha edulis) and pseudoephedrine was compared with the aim of identifying objective criteria that could be used to discriminate between them for forensic and doping‐control purposes. An in vitro study using human liver microsomes and an in vivo study using rat urine were performed under harmonized
Jong Suk Park, Jun Sang Yu, Yejin Kim, Hee Seung Kim, Jae Chul Cheong, Jin Young Kim, Hye Hyun Yoo   +6 more
wiley   +1 more source

Systematic Characterization of In Vitro and In Vivo Metabolic Pathways and Identification of Novel Biomarkers of 26 Synthetic Cannabinoids

Molecules
In recent years, the harms and abuse of synthetic cannabinoids (SCs) have attracted extensive attention in society. Their structures have been updated rapidly, which brings great challenges for continuous detection and drug identification.
Yudie Ning, Tao Wang, Xiao Yang, Fang Guo, Yingwen Xu, Yuan Zhang, Kaile Wang, Meng Hu, Zhe Chen, Zhiwen Wei, Keming Yun   +10 more
doaj   +1 more source

Inhibition of cytochrome P450 enzymes by thymoquinone in human liver microsomes

Saudi Pharmaceutical Journal, 2018
The aim of the present study was to investigate the potential effect of thymoquinone (TQ) on the metabolic activity of four major drug metabolizing enzymes in human liver microsomes, namely cytochrome P450 (CYP) 1A2, CYP2C9, CYP2D6 and CYP3A4.
Ahmed A. Albassam, Abdul Ahad, Abdullah Alsultan, Fahad I. Al-Jenoobi   +3 more
doaj   +1 more source

The Role of Oxidative Stress in Periodontitis

Journal of Periodontal Research, EarlyView.
Oxidative stress is involved in multiple chemical reactions that take place in different intracellular organelles: mitochondria, rough endoplasmic reticulum, peroxisomes, autophagy, and aging, and can be influenced by exogenous factors: nutrition, physical activity, psychological status, environmental conditions, microbiome, and drugs.
Pedro Bullon, Francesca Giampieri, Beatriz Bullon, Maurizio Battino   +3 more
wiley   +1 more source

In vitro metabolism of 20(R)-25-methoxyl-dammarane-3, 12, 20-triol from Panax notoginseng in human, monkey, dog, rat, and mouse liver microsomes.

PLoS ONE, 2014
The present study characterized in vitro metabolites of 20(R)-25-methoxyl-dammarane-3β, 12β, 20-triol (20(R)-25-OCH3-PPD) in mouse, rat, dog, monkey and human liver microsomes.
Xiangrong Zhang, Ji Zhang, Wei Li, Li Liu, Baoshan Sun, Zhenghong Guo, Caihong Shi, Yuqing Zhao   +7 more
doaj   +1 more source

In Vitro Metabolism and Analytical Characterization of SLU‐PP‐332 and SLU‐PP‐915: Novel Pan‐ERR Agonists With Doping Potential

Rapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Estrogen‐related receptor (ERR) agonists such as the drug candidates SLU‐PP‐332 and SLU‐PP‐915 are currently being investigated as exercise mimetics, given their ability to trigger human physiological processes similar to those initiated by actual physical activity.
Tristan Möller, Oliver Krug, Mario Thevis   +2 more
wiley   +1 more source

Clinical Study to Evaluate Drug Interactions of Cannabidiol with Citalopram and Morphine in Healthy Adults

Clinical Pharmacology &Therapeutics, Volume 119, Issue 4, Page 1095-1104, April 2026.
Cannabidiol (CBD) is one of the most abundant bioactive cannabinoids. Research has demonstrated CBD’s ability to inhibit metabolic enzymes like cytochrome P450 (CYP) and UDP‐glucuronosyltransferase (UGT), potentially leading to drug interactions. However, clinical knowledge gaps remain, particularly with regard to drugs that are more commonly taken by ...
Pablo Salcedo, Donna A. Volpe, Anik Chaturbedi, Aanchal Shah, Ashok Krishna, Paula L Hyland, Giri Vegesna, Cheng‐Hui Hsiao, Ryan De Palma, Melanie Fein, Rodney Rouse, Jeffry Florian   +11 more
wiley   +1 more source

Antiplasmodial Activity and Pharmacokinetic Profiling of Cryptolepine and 2,7‐Dibromocryptolepine With a View to Informing the Design of Novel Antimalarial Cryptolepine Analogues

Drug Development Research, Volume 87, Issue 2, April 2026.
ABSTRACT The roots of the climbing shrub Cryptolepis sanguinolenta are traditionally used in West Africa for the treatment of malaria. The principal constituent, cryptolepine (1), has been shown to have antimalarial activity but there are concerns regarding its toxicity on account of its DNA‐intercalating property.
Elodie Chenu, James Duffy, Arnold Donkor Forkuo, Stephen Y. Gbedema, Seham Abdelall, Muhammad Wahajuddin, Huw S. Jones, Colin W. Wright   +7 more
wiley   +1 more source