Time Matters in Ecotoxicological Sampling Due to Circadian Rhythm.
Environ Sci Technol
; 50(7): 3287-9, 2016 Apr 05.
Article
em En
| MEDLINE
| ID: mdl-27010328
ABSTRACT
As in general, technological inventions also drive the development in the field of toxicology and ecotoxicology. In the past decade, gene expression analysis has become a universally applied technology allowing many insights into toxicological pathways of environmental contaminants. Due to the novel technologies, including quantitative determination of mRNA by quantitative reverse transcription analysis (qRT-PCR), and semiquantitative methods, such as microarrays and RNA-sequencing technologies, toxicological profiles of contaminants could be identified. For instance, gene expression analysis of genes associated with the hypothalamic-pituitary-gonadal axis (HPG axis) in fish had become a conventional end point for endocrine disrupting chemicals. While these gene expression data provide novel insights into identifying potential toxicological end points and molecular mechanisms, often not enough attention is given to the question of mRNA stabilities and reliabilities of transcriptional data, in particular when links to physiological effects are difficult to make. A crucial factor in this issue is the endogenous circadian oscillations of genes during sampling.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ritmo Circadiano
/
Proteínas de Peixes
/
Ecotoxicologia
/
Peixes
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Environ Sci Technol
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Suíça