Document Detail

Sex-specific biochemical and histological differences in gonads of sea urchins (Psammechinus miliaris) and their response to phenanthrene exposure.
MedLine Citation:
PMID:  21094999     Owner:  NLM     Status:  In-Process    
Female and male individuals of the same species often differ with respect to their susceptibility to toxicant stress. In the present study, sea urchins (Psammechinus miliaris) of both sexes were exposed to high (150 μg L⁻¹) and environmentally relevant (5 μg L⁻¹) concentrations of phenanthrene over 10 days. While food intake was significantly decreased following exposure to 150 μg L⁻¹ phenanthrene, histological indices (lipofuscin accumulation, fibrosis, oocyte atresia), energetic status (energy charge, sum adenylates, AMP/ATP ratio) as well as ascorbate levels in the gonads showed either little or no effect upon phenanthrene exposure. However, most parameters (vitamin C, energy charge, sum adenylates, AMP/ATP ratio, ATP and ADP concentrations, lipofuscin content, fibrosis) significantly differed between male and female animals. This study illustrates the difficulties to identify toxic injury in reproductive tissue as it may be superimposed by gametogenesis and spawning of gametes.
Sabine Schäfer; Doris Abele; Ellen Weihe; Angela Köhler
Related Documents :
21187319 - Leptin-dependent serotonin control of appetite: temporal specificity, transcriptional r...
25313239 - Acceptability of an advance directive that limits food and liquids in advanced dementia.
12180689 - Statistical approach for risk assessment of aflatoxin sampling plan used by manufacture...
21336649 - White tea consumption slightly reduces iron absorption but not growth, food efficiency,...
3391969 - Determination of sulfur amino acids and tryptophan in foods and food and feed ingredien...
13940869 - A method for i 131 conversion ration utilizing the plasma inorganic i 131 fraction.
21740949 - Assessing the effects of gamma irradiation and storage time in energetic value and in m...
16268149 - Functional and structural impact of linuron on a freshwater community of primary produc...
25035169 - Exposure assesment of malondialdehyde, 4-hydroxy-2-(e)-nonenal and 4-hydroxy-2-(e)-hexe...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-26
Journal Detail:
Title:  Marine environmental research     Volume:  71     ISSN:  1879-0291     ISO Abbreviation:  Mar. Environ. Res.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882895     Medline TA:  Mar Environ Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  70-8     Citation Subset:  IM    
Copyright Information:
© 2010 Elsevier Ltd. All rights reserved.
Alfred Wegener Institute for Polar and Marine Research within the Helmholtz Association, Am Handelshafen 12, 27570 Bremerhaven, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Glomerular filtration rate, proteinuria, and the incidence and consequences of acute kidney injury: ...
Next Document:  High-throughput generation of hydrogel microbeads with varying elasticity for cell encapsulation.