Record Display for the EPA National Library Catalog

RECORD NUMBER: 38 OF 42

Main Title Screening methods for toxic substances /
Author Sikka, Harish Chandra.
CORP Author Syracuse Research Corp., N.Y.;Health Effects Research Lab., Research Triangle Park, N.C. Environmental Toxicology Div.
Publisher U.S. Environmental Protection Agency, Health Effects Research Laboratory,
Year Published 1978
Report Number EPA-600/1-78-014; EPA-68-02-1786
Stock Number PB-277 017
OCLC Number 42843379
Subjects Toxicity testing ; Neurotoxic agents ; Phenytoin--Toxicology ; DDT (Insecticide)--Toxicology ; Neurotoxic agents--Screening
Additional Subjects Brain ; Neurology ; Toxicology ; DDT ; Pesticides ; Synapses ; Nervous system ; Nerve cells ; Membranes ; Permeability ; Ions ; Pathology ; Detection ; Toxicity ; Tests ; Sublethal dosage ; Rats ; Laboratory animals ; In vitro analysis ; Toxic substances ; Synaptosomes ; Fluorescent probes
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=91013W4H.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD  EPA 600-1-78-014 c.1 Headquarters Library/Washington,DC 06/09/2014
EJED  EPA 600/1-78/014 OCSPP Chemical Library/Washington,DC 01/13/2001
EKBD  EPA-600/1-78-014 Research Triangle Park Library/RTP, NC 02/23/2000
ELBD ARCHIVE EPA 600-1-78-014 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-1-78-014 AWBERC Library/Cincinnati,OH 03/29/2021
NTIS  PB-277 017 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation v, 18 pages ; 28 cm.
Abstract
The present report deals with the application of fluorescent probe technique to the detection of conformational changes in rat brain synaptosomes under the influence of certain neurotoxic chemicals, chlorophenothane (DDT) and diphenylhydantoin, which are expected to produce functional changes in nerve membranes. Pretreatment of the rats with (1) a single dose of DDT capable of producing neurological symptoms and (2) repeated sub-lethal doses of DDT did not alter the fluorescence characteristics of the hydrophobic probe 8-anilino-1-naphthalene sulfonic acid (ANS) bound to the synaptosomes. DDT treatment also showed no effect on native protein fluorescence of synaptosomes. Exposure of synaptosomes to diphenylhydantoint in vitro did not induce conformational changes as measured by ANS and intrinsic fluorescence.
Notes
"EPA-600/1-78-014." EPA contract no. 68021786; EPA project officer: Larry L. Hall. Includes bibliographical references (pages 16-17).