NDLI: Regional Distribution of Phospholipids and Polyphosphatidyl Inositides in the Rabbit's Spinal Cord

Content Provider	Springer Nature Link
Author	Lukáčová, Nadežda Maršala, Jozef
Copyright Year	1997
Abstract	The plasticity of the membrane phospholipids in general and stimulated phosphoinositides turnover in particular are the subjects in a variety of neural paradigms studying the molecular mechanisms of neuronal changes under normal and pathological conditions. The regional modifiability of phospholipids (SM, PC, PS, PI, PA + DG, PE), polyphosphatidylinositides (PI, PIP, PIP$_{2}$) and diacylglycerol-dependent incorporation of CDP-choline into phosphatidylcholine in the gray matter, white matter, dorsal horns, intermediate zone and ventral horns of the rabbit's spinal cord was studied. We have found 1. a significant increase in the concentration of SM, PC, PS, DG + PA and PE in the white matter in comparison to the gray one, 2. the highest concentration of the outer membrane leaflet-bound phospholipids in the dorsal horns and the inner membrane phospholipids in the intermediate zone in comparison to the gray matter, 3. a substantial amount of labeled polyphosphatidylinositides (poly-PI$_{s}$) in the spinal cord white matter with descending order PIP > PI > PIP$_{2}$, 4. similar incorporation of myo-2-[$^{3}$H]inositol into all poly-PI$_{s}$ in ventral horns and intermediate zone, but a different, lower incorporation into PI and PIP and higher into PIP$_{2}$ in the dorsal horns, 5. higher diacylglycerol-dependent incorporation of CDP-choline into PC in the regionally undivided gray matter than in the white matter taken as a whole, 6. the high proportion of diacylglycerol-dependent incorporation of CDP-choline into PC in both the ventral and dorsal horns, whereas that in the intermediate zone remained low.
Starting Page	687
Ending Page	692
Page Count	6
File Format	PDF
ISSN	03643190
Journal	Neurochemical Research
Volume Number	22
Issue Number	6
e-ISSN	15736903
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1997-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Neurosciences Neurology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Cellular and Molecular Neuroscience

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