Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 97

OLS Field Name OLS Field Data
Main Title Age-Dependent Changes in Activity of Mallard Plasma Cholinesterases.
Author Bennett, R. S. ; Bennett, J. K. ;
CORP Author Corvallis Environmental Research Lab., OR. ;NSI Technology Services Corp., Corvallis, OR.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-92/325;
Stock Number PB92-232875
Additional Subjects Cholinesterase ; Ducks ; Aging(Biology) ; Blood ; Butyrylcholinesterase ; Acetylcholinesterase ; Pesticides ; Cholinesterase inhibitors ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB92-232875 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/01/1993
Collation 3p
Abstract
Plasma acetylcholinesterase (AChE) and butrylcholinesterase (BChE) activity was measured repeatedly in 27 mallard (Anas platyrhynchos) ducklings between 7 and 85 days of age to determine age-dependent changes in enzyme activity. Plasma AChE, BChe, and total cholinesterase (ChE) activity decreased significantly with age. The relative proportion of AChE in total ChE activity also decreased slightly with age. Since some anti ChE chemicals can selectively inhibit AChE or BChE activity, characterization of age-dependent changes in the activity of each enzyme may be necessary to accurately identify the occurrence of pesticide exposure.