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Published on BioPortfolio: 2018-08-23T21:26:17-0400
We aim to evaluate the effect of an extension of conventional urine diagnostics with mass spectrometry in patients with a suspected UTI. Mass spectrometry is done directly from the urine s...
This is an experimental study of participants who had positive blood culture to compare time to appropriate antibiotic between using Microarray Assay and Mass Spectrometry to bacterial Ide...
The purpose of this study is to evaluate the basis for the reported good effects of antioxidant supplementation. A blood test using Mass Spectrometry will measure DNA damage which is expec...
RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about changes that occur and identify biomarkers related to cancer. PURPOSE: T...
Aim: Determine if Rapid Evaporative Ionization Mass Spectrometry (the iKnife); can diagnose cancer and pre-cancer from endometrial tissue biopsy samples. Women attending a gynaecology cli...
Gall bladder cancer (GBC) is associated with abdominal pain, lump, nausea, vomiting, and jaundice due to either gall bladder mass or the involved adjacent peritoneal structures. Gall bladder cancer pr...
Bladder cancer is one of common malignancies worldwide. lncRNAs and miRs are reported to play crucial roles in bladder cancer. We aimed to reveal the roles and mechanisms of lncRNA PEG10 and miR-134 i...
Development of therapy-resistant cancer is a major problem in clinical oncology, and there is an urgent need for novel markers identifying development of the resistant phenotype. Lipidomics represents...
Bladder cancer is a serious cancer in the world, especially in advanced countries. Bladder cancer stem cells (CSCs) drive bladder tumorigenesis and metastasis. Circular RNAs (circRNAs) are involved ...
To investigate the rate of bladder cancer in patients undergoing cystoscopic evaluation for AMH in order to identify groups at sufficiently low risk for bladder cancer in whom invasive testing may be ...
A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.
A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.
An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.
A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.
A mass spectrometric technique that is used for the analysis of a wide range of biomolecules, such as glycoalkaloids, glycoproteins, polysaccharides, and peptides. Positive and negative fast atom bombardment spectra are recorded on a mass spectrometer fitted with an atom gun with xenon as the customary beam. The mass spectra obtained contain molecular weight recognition as well as sequence information.