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Changes in Hematological Parameters of Cichlasoma dimerus (Teleostei, Perciformes) Exposed to Sublethal Concentrations of 4-tert-Octylphenol
(Springer, 2014-01)
Stress response involves various physiological changes, including alteration in hematological parameters closely related to the response of fish to the environment. 4-tert-octylphenol (OP) is one of the worldwide-used ...
Effect of Additives on the Cloud Point of the Octylphenol Ethoxylate (30EO) Nonionic Surfactant
(Brasil, 2013)
The effect of different additives on the cloud point (CP) of an octylphenol ethoxylate (OPEO30) aqueous solution was investigated. The CP of OPEO30 is higher
than 100 C due to its approximately 30 oxyethylene units per ...
Recovery of the Reproductive Capability Following Exposure to 4-tert-Octylphenol in the Neotropical Cichlid Fish Cichlasoma dimerus
(Springer, 2016-05)
Here, we analyzed the recovery of the reproductive capability in male Cichlasoma dimerus after exposure to sublethal concentrations of 4-tert-octylphenol (OP), a demonstrated estrogenic chemical. Adult fish were exposed ...
Nonmonotonic response of vitellogenin and estrogen receptor geneexpression after octylphenol exposure of Cichlasoma dimerus(Perciformes, Cichlidae)
(Elsevier Science, 2014-08)
In oviparous vertebrates, vitellogenin (VTG) is mainly produced by the liver in response to estrogen(E2) and its synthesis is traditionally coupled to estrogen receptor alpha induction. Even though VTG isa female-specific ...
Time-course recovery of estrogen-responsive genes of a cichlid fish exposed to waterborne octylphenol
(Elsevier Science, 2012-06)
The aim of this study was to describe the time-course of estrogen-induced gene expression, corresponding plasma protein detection and histological alterations after cessation of octylphenol (OP) exposure of Cichlasoma ...
Matrix Effects on Water Analysis for Alkylphenols Using Solid Phase Extraction Gas Chromatography-Mass Spectrometry
(2013-11-01)
Gas chromatography with mass spectrometry is frequently used for the quantification of many classes of substances, including alkylphenols. Alkylphenol polyethoxylates are nonionic surfactants used in a wide variety of ...
Matrix Effects on Water Analysis for Alkylphenols Using Solid Phase Extraction Gas Chromatography-Mass Spectrometry
(2013-11-01)
Gas chromatography with mass spectrometry is frequently used for the quantification of many classes of substances, including alkylphenols. Alkylphenol polyethoxylates are nonionic surfactants used in a wide variety of ...
Effects of waterborne exposure to 17β-estradiol and 4-tert-octylphenol on early life stages of the South American cichlid fish Cichlasoma dimerus
(Elsevier Inc, 2015-10)
Estrogenic chemicals are often detected in the aquatic environment and can negatively affect animal development and reproduction. In teleost fishes, the hormonal regulation during a critical period of larval development ...