Identifying new lipid markers linked to traumatic brain injury (TBI) is of major importance in characterizing their central role in the regeneration process and inflammatory response in such an injury model. In the present study, an advanced lipidomics analysis using high spectral resolution matrix-assisted laser desorption/ionization-mass spectrometry imaging was performed on different brain regions in an experimental rat model of moderate controlled cortical impact (CCI) while considering different time points (1 day, 3 days, 7 days, and 10 days) assessing the acute and subacute phase after injury. Our results revealed a new family of lipids, the acylcarnitines, as TBI-lipid related markers, with maximum expression at 3 days after impact and main colocalization within resident microglia of the brain. Furthermore, our experiments highlighted the upregulation of these acylcarnitine lipids, secreted by microglia, in the ipsilateral , the main region in the brain affected in Parkinson's disease (PD).

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.analchem.9b02633DOI Listing

Publication Analysis

Top Keywords

matrix-assisted laser
8
laser desorption/ionization-mass
8
desorption/ionization-mass spectrometry
8
spectrometry imaging
8
traumatic brain
8
brain injury
8
days days
8
brain
5
injury
5
imaging lipids
4

Similar Publications

, a rare Gram-negative pathogen first identified in 2003, belongs to the family. Although infrequently reported, it has been isolated from various clinical infections, including wounds, and respiratory tract infections. Our case report highlights an unusual presentation of in a 13-year-old girl with a complex medical history, associated with external ear pressure ulcers.

View Article and Find Full Text PDF

One critical issue in hydrogen/deuterium exchange mass spectrometry (HDX MS) analysis is the deleterious back exchange. Herein, we report that when matrix-assisted laser desorption/ionization (MALDI) is used, the MALDI process itself can also cause significant back exchange. The back exchange occurred inside the reactive MALDI plume was investigated by depositing a fully deuterated sample prepared in DO on top of a preloaded dried layer of matrix.

View Article and Find Full Text PDF

Vibrio fluvialis is a halophilic, motile, flagellated, gram-negative bacterium commonly associated with acute gastroenteritis. However, extraintestinal infections are rare. We describe an unusual case of V.

View Article and Find Full Text PDF

Six strains isolated from muskmelon and watermelon seedlings affected by stem rot and wilting in Serbia were reported as based on pathogenicity, LOPAT and cell wall fatty acid analyses. Recent bacterial isolates from cucurbit crops displaying -like symptoms in Alabama, USA, were identified as , prompting polyphasic re-evaluation of the Serbian strains. All six strains were found to cause severe disease in watermelon and squash seedlings under greenhouse conditions.

View Article and Find Full Text PDF

Background: Therapeutic monoclonal antibodies (t-mAbs) may interfere with electrophoresis-based methods used to monitor multiple myeloma (MM), which can create inaccurate results. Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry is an alternative to gels distinguishing between endogenous M-proteins and t-mAbs based on molecular mass.

Methods: Serum samples (n = 109) from 34 MM patients receiving Dara-KRd were collected 14 or 28 days postdaratumumab administration.

View Article and Find Full Text PDF

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!