A highly selective and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the simultaneous determination of trantinterol (SPFF) and its major metabolites for the first time. The analytes were extracted from rat urine and feces samples by liquid-liquid extraction (LLE) and determined in multiple reaction monitoring (MRM) mode with clenbuterol as the internal standard. Chromatographic separation was achieved on a Venusil ASB C8 column (2.1mm×100mm, 3μm), with the mobile phase consisted of methanol-0.2% formic acid (30:70, v/v) at the flow rate of 0.2mL/min. Each sample was chromatographed within 5min. This method has a lower limit of quantification (LLOQ) of 0.450, 1.05, 1.35, 0.904 and 1.36ng/mL for trantinterol (SPFF), arylhydroxylamine trantinterol (N-OH-SPFF), tert-butyl hydroxylated trantinterol (Tert-OH-SPFF), 1-carbonyl trantinterol (SPFF-COOH) and 3-methyl sulfone-dechloro-trantinterol (SPFF-SO2CH3) in rat urine, and 0.450, 1.35 and 0.904ng/mL for SPFF, Tert-OH-SPFF and SPFF-COOH in rat feces, respectively. The linear correlation coefficients were greater than 0.990. The intra- and inter-day precision (relative standard deviation, RSD) values were below 15% and the accuracy (relative error, RE) was -9.9% to 11% at three quality control levels. The method has been successfully applied to the excretion study following an oral administration of 1mg/kg trantinterol to rats.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jchromb.2013.06.033 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Investigation of the effects of silymarin and vitamin C on kidney damage and aquaporin-2 downregulation in lithium-induced nephrogenic diabetes insipidus in rats.
Drug Chem Toxicol
January 2025
Department of Pathology, Faculty of Veterinary Medicine, Bingöl University, Bingöl, Turkey.
Although lithium (LIT) therapy is key in managing bipolar disorder long-term, prolonged use significantly contributes to acquired Nephrogenic Diabetes Insipidus (NDI). This study examined whether combining Silymarin (SIL) with Vitamin C (Vit C) enhances protection against lithium-induced nephrotoxicity in rats, comparing their individual antioxidant effects as well. Rats subjected to Li exposure were provided with a standard commercial diet supplemented with 80 mmol LiCl per kilogram for 28 days.
View Article and Find Full Text PDF[Comparative study on metabolites in rat liver microsomes, urine, feces and bile between Shuganning Injection and Scutellariae Radix extract].
Zhongguo Zhong Yao Za Zhi
December 2024
School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China Engineering Research Center for Development and Application of Ethnic Medicine and Traditional Chinese Medicine, Guizhou Medical University Guiyang 550004, China.
This study aims to compare the metabolic differences of baicalin and its analogues between Shuganning Injection and Scutellariae Radix extract. Twelve SD rats were randomly divided into a Shuganning Injection group and a Scutellariae Radix extract group, with 6 rats in each group. Their liver microsomes were incubated with the drugs, and then the samples were collected.
View Article and Find Full Text PDFExtract Affects Acute Kidney Injury Caused by Rhabdomyolysis in Rats Through TNF/NF-κB Signaling Pathway.
Food Sci Nutr
January 2025
Department of Physiology, Faculty of Medicine Gonabad University of Medical Sciences Gonabad Iran.
Due to the anti-inflammatory and antioxidant properties of the and the pathological mechanisms of rhabdomyolysis in the kidney, this plant can be used to improve the symptoms of this disease. Then, in this study, we investigated the effects of this herb in improving kidney injury by rhabdomyolysis. Animals were divided into five groups: control, glycerol (received it for rhabdomyolysis induction), extract (received 12 mg/kg extract), and treatment groups with dexamethasone (0.
View Article and Find Full Text PDFMitigating lead acetate-induced histopathologic and physiologic disorders in rats receiving vitamin C and glutathione supplement.
Heliyon
January 2025
Zoology and Entomology Department, Faculty of Science, Arish University, North Sinai, Egypt.
The present work examines the extreme impact of lead acetate and the preventive function of co-supplementation with vitamin C and glutathione. It hypothesizes that these supplements can alleviate the poisonous effects of lead exposure. Eighty male albino rats, weighing 100 ± 15 g, were categorized into four groups: the control group, the second group receiving daily supplements of 100 mg/kg of body weight glutathione and 1 mg/100 g of body weight vitamin C orally, the third group receiving 100 mg/kg body weight of lead acetate orally daily, and the fourth group receiving similar oral dosages of lead acetate along with glutathione and vitamin C.
View Article and Find Full Text PDFUrinary oxidative stress biomarkers in nephrotoxicity induced by PM in a rat model.
Inhal Toxicol
January 2025
Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico.
Objective: The present study evaluated urinary oxidative stress (OxS) biomarkers to explain the extrapulmonary effect of renal function decline due to subchronic inhalation exposure to particles smaller than 2.5 μm, as well as the correlation of the biomarkers with the particles' endotoxin content.
Materials And Methods: Adult male Sprague-Dawley rats were exposed to subchronic inhalation of particles smaller than 2.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!