| Main Title |
Locally Synthesized Phosphatidylcholine, but Not Protein, Undergoes Rapid Retrograde Axonal Transport in the Rat Sciatic Nerve. |
| Author |
Padilla, S. ;
Freeman, E. B. ;
Tandon, P. ;
Wilson, V. Z. ;
|
| CORP Author |
Health Effects Research Lab., Research Triangle Park, NC. Neurotoxicology Div. ;ManTech Environmental Technology, Inc., Research Triangle Park, NC. ;North Carolina Univ. at Chapel Hill. Center for Environmental Medicine and Lung Biology. |
| Publisher |
c1993 |
| Year Published |
1993 |
| Report Number |
EPA/600/J-93/353; |
| Stock Number |
PB93-228591 |
| Additional Subjects |
Phosphatidylcholines ;
Axon ;
Sciatic nerve ;
Proteins ;
Biological transport ;
Rats ;
Spinal ganglia ;
Choline ;
Colchicine ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB93-228591 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
Retrograde axonal transport of phosphatidylcholine in the sciatic nerve has been demonstrated only after injection of lipid precursors into the cell body region. After microinjection (1 microliters) of (methyl-(3)H)choline chloride into the rat sciatic nerve (35-40 mm distal to the L4 and L5 dorsal root ganglia), time-dependent accumulation of (3)H-labeled material occurred in dorsal root ganglia ipsilateral, but not contralateral, to the injection site. The level of radioactivity in the ipsilateral dorsal root ganglia was minimal at 2 h after isotope injection but was significantly increased at 7, 24, 48, and 72 h after intraneural isotope injection (n = 3-8 per time point); at these time points, all of the radiolabel in the chloroform/methanol extract of the ipsilateral dorsal root ganglia was present in phosphatidylcholine. The radioactivity in the water-soluble fraction did not show a time-dependent accumulation in the ipsilateral dorsal root ganglia as compared with the contralateral DRGs, ruling out transport or diffusion of precursor molecules. In addition, colchicine injection into the sciatic nerve proximal to the isotope injection site prevented the accumulation of radiolabel in the ipsilateral dorsal root ganglia. Therefore, this time-dependent accumulation of radiolabeled phosphatidylcholine in the ipsilateral dorsal root ganglia is most likely due to retrograde axonal transport of locally synthesized phospholipid material. (Copyright (c) 1993 International Society for Neurochemistry.) |
| Supplementary Notes |
Pub. in Jnl. of Neurochemistry 60, n5 p1900-1905 May 93. Prepared in cooperation with ManTech Environmental Technology, Inc., Research Triangle Park, NC., and North Carolina Univ. at Chapel Hill. Center for Environmental Medicine and Lung Biology. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Locally Synthesized Phosphatidylcholine, but Not Protein, Undergoes Rapid Retrograde Axonal Transport in the Rat Sciatic Nerve. |
| Category Codes |
57B; 57F |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/10 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
329432234 |
| Origin |
NTIS |
| Type |
CAT |
