A sensitive and specific liquid chromatographic method using solid-phase extraction with Sep-pak cartridges has been developed for the determination of Casiopeina IIgly and validated over the linear range 2.5-50 microg/ml in rat plasma. The analysis was performed on a Symetry C(18) (5 microm) column with a Phenomenex C(18) precolumn. The mobile phase was methanol-water (58:42, v/v). The column effluent was monitored at 273 nm. The results showed that the assay is sensitive at 2.5 microg/ml. Maximum intra-day coefficient of variation was 11.47%. The recovery based upon addition of internal standard to rat plasma was 80.98%. The method was used to perform preclinical pharmacokinetic studies in rat plasma and was found to be satisfactory.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s1570-0232(03)00226-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Molecular Docking and Antihypertensive Activity of Isolated from Linn.
Pharmaceutics
December 2024
Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia.
Angiotensin-converting enzyme (ACE) is a key regulator of blood pressure, and ACE inhibition is an essential part of the treatment of hypertension. We used a molecular docking approach to find the interaction of ACE with an active flavonoid isolated from Linn, , which leads to potential antihypertensive effects in methyl predenisolone-induced hypertensive rats. Additionally, the pharmacokinetic parameters of this compound are assessed.
View Article and Find Full Text PDFPrediction of SPT-07A Pharmacokinetics in Rats, Dogs, and Humans Using a Physiologically-Based Pharmacokinetic Model and In Vitro Data.
Pharmaceutics
December 2024
Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China.
SPT-07A, a D-borneol, is currently being developed in China for the treatment of ischemic stroke. We aimed to create a whole-body physiologically-based pharmacokinetic (PBPK) model to predict the pharmacokinetics of SPT-07A in rats, dogs, and humans. The in vitro metabolism of SPT-07A was studied using hepatic, renal, and intestinal microsomes.
View Article and Find Full Text PDFOrg24598, a Selective Glycine Transporter 1 (GlyT1) Inhibitor, Reverses Object Recognition and Spatial Memory Impairments Following Binge-like Ethanol Exposure in Rats.
Molecules
December 2024
Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland.
The N-methyl-D-aspartate (NMDA) glutamate receptor is a major target of ethanol, and it is implicated in learning and memory formation, and other cognitive functions. Glycine acts as a co-agonist for this receptor. We examined whether Org24598, a selective inhibitor of glycine transporter1 (GlyT1), affects ethanol withdrawal-induced deficits in recognition memory (Novel Object Recognition (NOR) task) and spatial memory (Barnes Maze (BM) task) in rats, and whether the NMDA receptor glycine site participates in this phenomenon.
View Article and Find Full Text PDFThe Balance of Ketoacids α-Ketoglutarate and α-Ketoglutaramate Reflects the Degree of the Development of Hepatoencephalopathy in Rats.
Int J Mol Sci
December 2024
Centre for Strategic Planning of FMBA of the Russian Federation, Pogodinskaya St., Bld. 10, 119121 Moscow, Russia.
Hepatoencephalopathy (HE) is a liver disease that can lead to brain pathology and the impairment of human cognitive abilities. The objective assessment of HE disease severity is difficult due to the lack of reliable diagnostic markers. This paper examines the background to the emergence of HE markers and provides a brief overview of research results indicating the diagnostic value of potential markers isolated from a wide range of metabolites analyzed.
View Article and Find Full Text PDFL. Leaf Extract Dose-Dependently Modulates Oxidative Stress in the Kidney and Exerts Anti-Fibrotic and Anti-Inflammatory Properties by the Molecular Mechanisms Independent of NRF-2 Signalization Mirroring the Effects of Losartan in SHR.
Int J Mol Sci
December 2024
Department for Cardiovascular Physiology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića 4, P.O. Box 39, 11129 Belgrade, Serbia.
Previously, we confirmed systemic antihypertensive and antioxidant properties of L. leaf extract (UE) in spontaneously hypertensive rats (SHR). Here, we aimed to evaluate whether UE can alter the NO and Nrf-2 signaling to prevent local oxidative stress and kidney damage in the model of essential hypertension.
View Article and Find Full Text PDFWant 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!