Document Detail

Organochlorine contamination and physiological responses in nestling tree swallows in Point Pelee National Park, Canada.
MedLine Citation:
PMID:  16205989     Owner:  NLM     Status:  MEDLINE    
Point Pelee National Park in southwestern Ontario, Canada--a major migratory route and vital breeding area for many birds--has localized areas of organochlorine (OC) contamination from the 1950s and 1960s. During 2002, we investigated the effect of tissue OC contaminant levels on the physiology and growth of nestling tree swallows (Tachycineta bicolor). Polychlorinated biphenyl (PCB) contamination in the nestlings positively correlated with hepatic ethoxy-, benzyloxy-, and pentoxyresorufin-o-dealkylase enzyme activities and liver size. Despite detectable physiologic changes associated with body burdens of PCBs, reproductive success of breeding pairs was not affected. Hatching date was negatively correlated with PCB levels, alkoxyresorufin-O-dealkylase (alkROD) activities, liver size, and serum protein levels. alkROD activities were largely dependent on hatching date because insect prey contaminated with PCBs were only abundant during a limited period of time during the breeding season.
Z Papp; G R Bortolotti; J E G Smits
Related Documents :
17846789 - Determining the adaptation potential of entomopathogenic nematode multiplication of het...
23846159 - A single dose of beetroot juice enhances cycling performance in simulated altitude.
6982039 - Effects of induction of parturition in ewes with dexamethasone or oestrogen on concentr...
23143989 - Heart rate, heart rate variability and behaviour of horses during air transport.
12894999 - Fate of melanocytes during development of the hair follicle pigmentary unit.
3789499 - Efficacy of a morantel sustained-release bolus for the control of gastrointestinal nema...
16648649 - The association between mood states and physical activity in postmenopausal, obese, sed...
15899459 - Comparison of dyes for cataract surgery. part 2: efficacy of capsule staining in a rabb...
23075089 - Restrictive lung disease is an independent predictor of exercise intolerance in the adu...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-09-30
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  49     ISSN:  0090-4341     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2005 Nov 
Date Detail:
Created Date:  2005-10-26     Completed Date:  2005-12-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  563-8     Citation Subset:  IM    
Veterinary Pathology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Blood Proteins / analysis,  metabolism
Body Burden
Body Weight / drug effects
Cytochrome P-450 CYP1A1 / metabolism
Enzyme Induction / drug effects
Gas Chromatography-Mass Spectrometry
Growth / drug effects
Hydrocarbons, Chlorinated / analysis*,  toxicity*
Isoenzymes / metabolism
Microsomes, Liver / drug effects,  enzymology
Swallows / physiology*
Reg. No./Substance:
0/Blood Proteins; 0/Hydrocarbons, Chlorinated; 0/Isoenzymes; EC P-450 CYP1A1

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Factors controlling mercury and methylmercury concentrations in largemouth bass (Micropterus salmoid...
Next Document:  Assessing the detoxication efficiencies of wastewater treatment processes using a battery of bioassa...