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Determination of Polycyclic Aromatic Hydrocarbons (PAH) and Their Metabolites in Blood, Feces, and Urine of Rats Orally Exposed to PAH Contaminated Soils
- F. van Schooten, E. Moonen, L. van der Wal, P. Levels, J. Kleinjans
- Medicine, Chemistry
- Archives of environmental contamination and…
- 1 October 1997
Abstract. Polycyclic aromatic hydrocarbons (PAH) have become an ubiquitous upper soil component as a consequence of industrialization involving a multitude of combustion processes. Ingestion of PAH… Expand
Intrinsic variability in the frequency of embryonic diapauses of the annual fish Nothobranchius korthausae, regulated by light:dark cycle and temperature
SynopsisThe influence of the light:dark cycle and temperature on the embryonic development, especially diapause, of the annual fish Nothobranchius korthausae was investigated. The variability of the… Expand
Oxygen consumption during embryonic development of the annual fish Nothobranchius korthausae with special reference to diapause.
The oxygen consumption of Nothobranchius korthausae eggs in different developmental stages, including diapause II and III, was measured. Oxygen consumption increases exponentially during embryonic… Expand
The effect of the presence of adult fishes, gonad homogenates, and embryo homogenates on the dispersion‐reaggregation phase during early embryonic development of the annual fish Nothobranchius…
The effect of the presence of adults of the annual fish Nothobranchius korthausae on development of eggs of this species was investigated. If the eggs were incubated in glass tanks together with… Expand
Chromatographic methods for the determination of toxicants in faeces.
- T. D. de Kok, P. Levels, A. van Faassen, M. Hazen, F. ten Hoor, J. Kleinjans
- Chemistry, Medicine
- Journal of chromatography
- 16 September 1992
Modern chromatographic techniques and their application in the determination of toxic compounds in faeces are reviewed. Faecal analysis may be of importance in toxicokinetic studies of xenobiotics in… Expand
The relation between pituitary gland and thyroid growth during the lifespan of the annual fish Cynolebias whitei and Nothobranchius korthausae: gonadotropic and thyrotropic cells
SummaryIn the annual cyprinodont Cynolebias whitei the cell types responsible for the increase of pituitary growth at the onset of maturation and for pituitary hyperplasia in old specimens were… Expand