Norcantharidin (NCTD), the demethylated analogue of cantharidin, inhibits the proliferation of a variety of human tumor cell lines, and appears to cause the least nephrotoxic and inflammatory side effects. Although NCTD has been used to treat human cancers in China for years, there is no report regarding its metabolism up to now. This is the first report to separate and identify the main metabolites of NCTD in vivo by GC-MS using TMS derivatives. Two hydrolyzed products and five phase I or phase II metabolites were found in rat by the chromatogram comparisons of the blank with incurred biological samples. Multiple stages of fragmentation patterns were used to confirm the metabolites characterizations. The established GC-MS method can also be applied to identifying unknown metabolites of the drugs containing hydroxyl or carbonyl groups in molecular structure.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jchromb.2011.04.019 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Breath biopsy in inborn errors of metabolism: A proof-of-principle study in propionic acidemia.
Mol Genet Metab
December 2024
National Human Genome Research Institute, Bethesda, MD, USA. Electronic address:
Background: Impaired oxidation of branched chain amino acids may give rise to volatile organic compounds (VOCs). We hypothesized that VOCs will be present in exhaled breath of participants with propionic acidemia (PA), and their relative abundance would correlate with clinical and biochemical characteristics of the disease.
Methods: We enrolled 5 affected participants from a natural history study of PA (ClinicalTrials.
Herbal Extracts Mixed with Essential Oils: A Network Approach for Gastric and Intestinal Motility Disorders.
Nutrients
December 2024
Food Chemistry and Nutraceutical Laboratory, Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
Background: Three herbal extracts ( Willd., Lorentz, and L.) were mixed with three essential oils ( Mill.
View Article and Find Full Text PDFMass Spectrometric Based Metabolomics of the Saudi Cultivar of Fenugreek ( L.): A Combined GC-MS, Antimicrobial and Computational Approach.
Pharmaceuticals (Basel)
December 2024
Department of Biology, College of Science, Qassim University, Buraydah 51452, Saudi Arabia.
In Saudi Arabia, numerous plant species with promising medicinal properties are cultivated, widely traded, and commonly utilized in traditional medicine, including fenugreek (). This study aimed to comprehensively assess the phytochemical composition and antimicrobial potential of the Saudi cultivar of fenugreek using an integrative approach combining in vitro and in silico methodologies. A comprehensive investigation was conducted on the ethanol extract of fenugreek seeds, assessing its antibacterial, antifungal, properties.
View Article and Find Full Text PDFIn Vitro Evaluation, Chemical Profiling, and In Silico ADMET Prediction of the Pharmacological Activities of Root Extract.
Pharmaceuticals (Basel)
December 2024
Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
L., is a plant with established pharmacological properties, but the root extract (AARE) remains unexplored. The aim of this study was to examine the chemical composition of AARE and assess its biological activity, which included antidiabetic, antibacterial, anticancer, and antioxidant properties.
View Article and Find Full Text PDFMicrobubble-Protected Oncolytic Virotherapy Targeted by Sonoporation Induces Tumor Necrosis and T-Lymphocyte Infiltration in Humanized Mice Bearing Triple-Negative Breast Cancer.
Int J Mol Sci
December 2024
Department of Pharmacology & Toxicology, Cancer Center & Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA.
Oncolytic virotherapy has shown great promise in mediating targeted tumor destruction through tumor-selective replication and induction of anti-tumor immunity; however, obstacles remain for virus candidates to reach the clinic. These include avoiding neutralizing antibodies, preventing stimulation of the adaptive immune response during intravenous administration, and inducing sufficient apoptosis and immune activation so that the body's defense can work to eradicate systemic disease. We have developed a co-formulation of oncolytic viruses (OVs) with Imagent lipid-encapsulated, perfluorocarbon microbubbles (MBs) to protect the OVs from the innate and adaptive immune system.
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!