A novel galactosylalkylglycerol modified with a long-chain cyclic acetal at the sugar moiety, 3-O-(4'6'-plasmalogalactosyl) 1-O-alkylglycerol, was isolated from equine brain. The presence of cyclic acetal linkage, its linked position, and the length of the acetal chain of the natural plasmalo lipid were determined by proton NMR spectroscopy and fast-atom bombardment;-mass spectrometry, as well as gas chromatography;-mass spectrometry and gas;-liquid chromatography. To identify the isomeric stereostructure of the natural product, the plasmalo derivative was chemically synthesized from 3-O-galactosyl 2-O-acyl 1-O-alkyl glyceride through acetalization after deacylation. As a result, the direction and position of the acetal chain of the natural plasmalo lipid were characterized as an "endo"-type 4',6'-O-acetal derivative linked to galactoside by comparison with the NMR data of the synthesized product. The chain lengths of alkyl and acetal groups were C(14) for the former and C(16) and C(18) for the latter, and those for the latter group were mostly similar to those of plasmalogalactosyl ceramide, which was previously isolated from equine brain.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Characterization and comparison of fecal microbiota in horses with pituitary pars intermedia dysfunction and age-matched controls.
J Vet Intern Med
January 2025
School of Veterinary Science, The University of Queensland, Gatton, Queensland, Australia.
Background: Altered gut microbiota has been associated with dopaminergic degenerative diseases in people, but studies on horses with pituitary pars intermedia dysfunction (PPID) are lacking.
Hypothesis/objectives: Investigate the effect of PPID on fecal microbiota in horses.
Animals: Nine horses with PPID and 13 age-matched control horses.
The weight of multiple hits: how TBI and infectious encephalitis co-modulate adverse outcomes.
Brain Inj
January 2025
Department of Biomedical Science and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, USA.
Background: Chronic neurologic deficits from traumatic brain injury (TBI) and subsequent infectious encephalitis are poorly characterized.
Methods: Using TriNetX database we queried patients 18 years or older with a confirmed diagnosis of encephalitis between 2016 and 2024. Patient cohorts included those with a diagnosis of TBI at least one month before encephalitis ( = 1,038), those with a diagnosis of a TBI anytime before encephalitis ( = 1,886), and those with encephalitis but no TBI, ( = 45,210; = 45,215).
Rhythmic categories in horse gait kinematics.
J Anat
January 2025
Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy.
Anecdotally, horses' gaits sound rhythmic. Are they really? In this study, we quantified the motor rhythmicity of horses across three different gaits (walk, trot, and canter). For the first time, we adopted quantitative tools from bioacoustics and music cognition to quantify locomotor rhythmicity.
View Article and Find Full Text PDFpoisoning in two horses: A case report.
Vet Med (Praha)
November 2024
Equine Clinic, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Brno, Czech Republic.
This case report describes the poisoning of two mares from the same paddock with (Black locust) bark. The poisoning manifested itself by the sudden onset of weakness and fever with transient improvement after the administration of non-steroidal anti-inflammatory drugs and fluids. After the initial stabilisation, the mares were left unattended overnight.
View Article and Find Full Text PDFNeuropathology, pathomechanism, and transmission in zoonotic Borna disease virus 1 infection: a systematic review.
Lancet Infect Dis
January 2025
Department of Neuropathology, Medical Faculty, University of Augsburg, Augsburg, Germany; Pathology, Medical Faculty, University of Augsburg, Augsburg, Germany. Electronic address:
Borna disease, which is a severe encephalitis that primarily affects horses and sheep, has been recognised for over two centuries. Borna disease virus 1 (BoDV-1) has been identified as a cause of a predominantly fatal encephalitis in humans. Little scientific data exist regarding the virus' transmission, entry portal, and excretion routes.
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!