Endocrine System

Janz, David M.

doi:10.1016/b978-012529650-2/50016-0

Cited by 26 publications

(31 citation statements)

References 151 publications

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“…Thyroid hormones assist in control of different physiological functions according to the development state of embryo, larva, juvenile and adult fish (Janz, 2000). In fish, thyroid status is positively correlated to reproductive status, whereas a seasonal rise in thyroid hormones coincident with gonadal maturation and reproduction has generally been observed.…”

Section: Introductionmentioning

confidence: 99%

Effects of persistent organic pollutants on the thyroid function of the European sea bass (Dicentrarchus labrax) from the Aegean sea, is it an endocrine disruption?

Schnitzler¹,

Koutrakis²,

Siebert³

et al. 2008

Marine Pollution Bulletin

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Article history: Available online xxxx a b s t r a c tWe evaluated the alterations of organochlorinated compounds such as polychlorobiphenyls (PCB), dichloro-diphenyl-dichloroethylene (DDE) and dichloro-diphenyl-trichloroethane (DDT) on the thyroid in wild and cultured sea bass (Dicentrarchus labrax) at environmental concentrations. These compounds influence the endocrine system of many fish species and are qualified as endocrine disruptors. The thyroid seems to be a target organ. Two alteration endpoints: the thyroid histology and the muscular thyroid hormone concentrations, were used simultaneously. High concentrations in PCBs and DDT were detected in muscles, supporting the idea that the Mediterranean fauna could be more polluted than the Atlantic fauna. The high abundance of DDE indicates a progressive degradation of remnant DDT load and the absence of new inputs in this area. Aquaculture sea bass shows a significant higher amount of pollutants on fresh weight basis (especially PCBs) in their muscles compared to the wild sea bass. Those differences may be related mainly to the contaminations of diet. Thyroid parameters vary between wild and aquaculture sea bass, wild sea bass were characterized by higher follicle diameters, epithelial cell heights and muscular T 4 concentrations. A significant relationship between persistent organic pollutants (muscular PCBs and DDT concentration) and the different thyroid parameters (diameters of follicles, epithelial cell heights and muscular T 4 levels) could be observed, which support the hypothesis that these compounds have an adverse impact on thyroid morphometry and function.

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Section: Introductionmentioning

confidence: 99%

Effects of persistent organic pollutants on the thyroid function of the European sea bass (Dicentrarchus labrax) from the Aegean sea, is it an endocrine disruption?

Schnitzler¹,

Koutrakis²,

Siebert³

et al. 2008

Marine Pollution Bulletin

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“…Both cell types are usually distributed in the anterior (head) kidney and surround the postcardinal vein and its branches (Gallo & Civinini 2003). The release of corticosteroids (cortisol) upon stimulation of the brain-pituitary-interrenal axis and release of catecholamines (adrenaline and noradrenaline) upon stimulation of the brain-sympathetic-chromaffin cell axis together constitute what is referred to as the stress in fish (Janz 2000). It has been reported that the intermingling position and distribution of the interrenal and chromaffin cells associated with the postcardinal vein and its branches can vary depending on the fish species (Abdel-Aziz 2010; Chakrabarti & Ghosh 2014;Rocha et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Histological Organization of Thyroid and Interrenal Glands of the Pearl Mullet, Alburnus tarichi (Cypriniformes: Cyprinidae) from Lake Van Basin of Turkey

Kaptaner¹

2017

JSM

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“…Rather, thyroid follicles (the basic unit of all thyroid tissue) are typically distributed in a diffuse manner throughout the ventral pharyngeal region (Bonga 1993; Janz 2000). In addition, thyroid follicles may develop at secondary locations within the fish such as in the ovary, head kidney and pericardium (Janz 2000). The dispersed nature of thyroid tissue in fish makes certain morphological assessments of thyroid tissue such as determination of a thyroid tissue-somatic index impractical.…”

mentioning

confidence: 99%

“…In fact, it has been said that thyroid hormones influence the activity of a wider variety of tissues and biological functions than any other hormone (Janz 2000). Therefore, it is prudent of any endocrine disruptor screening assay to include some measure of effect on thyroid tissue.…”

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confidence: 99%

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Detailed Review Paper on Fish Screening Assays for the Detection of Endocrine Active Substances

2004

OECD Series on Testing and Assessment

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LIST OF TABLES ACKNOWLEDGMENTSThe OECD Secretariat would like to acknowledge the contributions of national experts who provided extensive comments on the draft version of this detailed review paper:• US Environmental Protection Agency, Office of Science Coordination and Policy, who prepared the original version of this document; • Brunel University, Department Biological Sciences, United Kingdom;• US Environmental Protection Agency, Mid-Continent Ecology Division (Duluth, MN);• University of Heidelberg, Zoological Institute, Aquatic Ecotoxicology, Germany;• Fraunhofer Institute for Molecular Biology and Applied Ecology (Schmallenberg) Germany;• ECT Ecotoxicology (Flörsheim), Germany;• Laboratory for Aquatic Organisms, Bayer CropScience (Monheim), Germany;• DHI Water & Environment, Environmental Risk Assessment (Hørsholm), Denmark, who assisted the OECD Secretariat in finalising the Detailed Review Paper; • Schering AG, Experimental Toxicology (Berlin), Germany;• University of Southern Denmark, Institute of Biology (Odenske), Denmark;• European Commission, ECB European Chemicals Bureau (Ispra) Italy;• Institut National de l'Environnement Industriel et des Risques (Verneuil-en-Halatte), France;• CEFAS -Centre for Environment Fisheries and Aquaculture Science, United Kingdom;• Department of the Army Corps of Engineers, United States;• Waterways Experiment Station, Environmental Laboratory (Vicksburg/MS, US). ENV/JM/MONO(2004)18 13 PREAMBLEIn 1998, a Task Force on Endocrine Disrupter Testing and Assessment (EDTA) was established at the request of OECD member countries. The EDTA Task Force is a Special Activity of the Test Guidelines Programme and its main objectives are to:identify the needs and prioritize the development of new and enhanced guidelines for the detection and characterization of endocrine disrupting chemicals;• develop a harmonized testing strategy for the screening and testing of endocrine disrupters;• manage validation work for newly developed and enhanced Test Guidelines as appropriate;and, • provide practical tools for sharing testing results and assessments.The need for new and updated test methods to detect and characterise endocrine disrupting chemicals has been expressed by the Task Force for the assessment of human health effects and environmental effects. At early meetings of the EDTA Task Force, it appeared that existing OECD Test Guidelines would insufficiently cover for endocrine-related effects, especially for the environment. Member countries decided to list test methods which could potentially cover effects of chemicals on the reproductive system (estrogen agonists/antagonists and androgen agonists/antagonists) and on the development (thyroid system), and proposed enhancements where needed. Fish screening assays have been developed for the detection of (anti-) estrogenic and (anti-)androgenic compounds in oviparous animals living in aquatic ecosystems, as there is good evidence that fish in the field are being impacted by endocrine active substances. This Detailed Review Paper (DRP) is...

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Endocrine System

Cited by 26 publications

References 151 publications

Effects of persistent organic pollutants on the thyroid function of the European sea bass (Dicentrarchus labrax) from the Aegean sea, is it an endocrine disruption?

Effects of persistent organic pollutants on the thyroid function of the European sea bass (Dicentrarchus labrax) from the Aegean sea, is it an endocrine disruption?

Histological Organization of Thyroid and Interrenal Glands of the Pearl Mullet, Alburnus tarichi (Cypriniformes: Cyprinidae) from Lake Van Basin of Turkey

Detailed Review Paper on Fish Screening Assays for the Detection of Endocrine Active Substances

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