scholarly journals Survey of Intersex (Testicular Oocytes) in Black Crappie Collected from the Illinois River Waterway

2018 ◽  
Vol 9 (2) ◽  
pp. 659-665
Author(s):  
Mark W. Fritts ◽  
Andrea K. Fritts ◽  
Richard M. Pendleton ◽  
Todd D. VanMiddlesworth ◽  
Levi E. Solomon ◽  
...  
Keyword(s):  
Aquatic Ecosystems ◽  
Endocrine Disrupting Compounds ◽  
Morphometric Parameters ◽  
Illinois River ◽  
Future Research ◽  
Pomoxis Nigromaculatus ◽  
Endocrine Disrupting ◽  
Intersex Condition ◽  
Normal Males ◽  
Sport Fish

Abstract Researchers have documented intersex (testicular oocytes) in male fishes in many species worldwide and prevalence of the condition is strongly related to exposure to endocrine-disrupting compounds in aquatic ecosystems. There is no available knowledge about the incidence of intersex in Black Crappie Pomoxis nigromaculatus, an important North American sport fish. The objective of this survey was to investigate the prevalence and distribution of the intersex condition in Black Crappie collected from portions of the Illinois River waterway. We collected and examined 83 Black Crappie. We observed testicular oocytes in 22 individuals (27% intersex), representing the first documentation of intersex condition in wild Black Crappie. The number of oocytes that we observed in intersex Black Crappie ranged from 1 to 67. We documented intersex in individuals collected from all habitats, but there were no significant differences in the prevalence of the condition (Kruskal–Wallis P = 0.56) or the number of oocytes present (P = 0.25) in intersex males from the different habitats. Permutational multivariate analysis of variance indicated that morphometric parameters varied significantly among locations (P = 0.0001), but did not vary significantly between intersex and normal males. We have little information about the current distribution of endocrine-disrupting compounds in the specific regions where we collected Black Crappie for our study. However, we believe our study represents a valuable effort to detect the condition in an important sport fish and lays a foundation for future research.

In vitro assessment of sex steroids and related compounds in water and sediments – a critical review

2018 ◽  
Vol 20 (2) ◽  
pp. 270-287 ◽  
Author(s):  
Chimi Wangmo ◽  
Sergio Jarque ◽  
Klára Hilscherová ◽  
Luděk Bláha ◽  
Michal Bittner
Keyword(s):  
Sex Steroids ◽  
Aquatic Ecosystems ◽  
Endocrine Disrupting Compounds ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Endocrine Disrupting ◽  
In Vitro Assessment ◽  
Related Compounds ◽  
Water And Sediment Samples

Detection of endocrine disrupting compounds in water and sediment samples has gained much importance since the evidence of their effects was reported in aquatic ecosystems in the 1990s.

scholarly journals Synthetic estrogens, their presence in aquatic ecosystems and effects on biota

2020 ◽  
Vol 12 (1) ◽  
pp. 84-101
Author(s):  
Débora Maria Carvalho da Silva ◽  
Cléber Domingos Cunha da Silva
Keyword(s):  
Aquatic Ecosystems ◽  
Emerging Contaminants ◽  
Scientific Literature ◽  
Endocrine Disrupting Compounds ◽  
Water Bodies ◽  
Ecotoxicological Tests ◽  
Online Platforms ◽  
Endocrine Disrupting ◽  
Scientific Papers ◽  
Synthetic Estrogens

Synthetic estrogens are endocrine disrupting compounds that might be in water bodies and, consequently, interfere in hormonal, metabolic and reproductive functions of organisms exposed. This study aims to analyze the international scientific literature about those chemicals through a systematic and narrative review. The investigated estrogens were 17a-ethinylestradiol (EE2), Mestranol (MeEE2), Diethylstilbestrol (DES) and Dienestrol (DNS), which are widely present in pharmaceuticals, consumed and disposed in the environment. For this review, only scientific papers, published from 1990 to 2019, were considered. They were collected in ScienceDirect, PubMed and Scielo online platforms. Introductory information about the compounds, such as their chemical characteristics and use in society were described, as their occurrence in aquatic ecosystems and effects on biota, reported by environmental assessments and ecotoxicological tests, respectively. According to this study, China is the major contributor in quantitative terms, counting 21 articles about synthetic estrogens. Some hormones demonstrated to be more investigated than others; moreover, the increasing of research about those emerging contaminants was noticed. Additionally, Brazilian water bodies revealed to have the highest concentrations, which should encourage critical thinking on its insufficient environmental management. The study also highlights the importance of scientific research expansion and its implementation on truly effective public policies for aquatic ecosystem conservation.

scholarly journals Intersex in the clam Scrobicularia plana : a sign of endocrine disruption in estuaries?

2006 ◽  
Vol 2 (3) ◽  
pp. 420-422 ◽  
Author(s):  
B.S Chesman ◽  
W.J Langston
Keyword(s):  
Endocrine Disruption ◽  
Endocrine Disrupting Compounds ◽  
Marine Ecosystems ◽  
Male Fish ◽  
Present Evidence ◽  
Scrobicularia Plana ◽  
Endocrine Disrupting ◽  
The Common ◽  
Intersex Condition

The phenomenon of endocrine disruption is currently a source of growing concern. Feminization of male fish in UK rivers has been shown to occur extensively and has been linked with exposure to endocrine-disrupting compounds present in the environment. Much less is known of the extent and scale of endocrine disruption in estuarine and marine ecosystems, particularly in invertebrates. We present evidence that intersex, in the form of ovotestis, is occurring in the common estuarine bivalve Scrobicularia plana , which is considered to be inherently gonochoristic. We report varying degrees in the severity of ovotestis in male S. plana , and have adopted and developed a grading method to assess the extent of this intersex condition. These findings indicate that S. plana offers potential for widespread screening and investigation of endocrine disruption, helping to focus remediatory strategy.

Endocrine Disruptors, Brain, and Behavior

2017 ◽  
Author(s):  
Heather B. Patisaul ◽  
Scott M. Belcher
Keyword(s):  
Endocrine Disruption ◽  
Critical Evaluation ◽  
Endocrine Disrupting Compounds ◽  
Adverse Outcomes ◽  
Policy Implications ◽  
Future Research ◽  
Endocrine Disrupting ◽  
Brain And Behavior ◽  
And Behavior ◽  
The Brain

Hormones play a foundational role in the sex-specific organization of the brain and, consequently, the complex behaviors they coordinate. Our world and bodies are becoming increasingly polluted with chemicals capable of interfering with hormone action and thus, possibly, our neural and mental health. If and how these endocrine-disrupting compounds (EDCs) affect the development and function of the brain, and may be contributing to neural disorders that are rapidly rising in prevalence, are the central concerns of this book. This work also examines why even the concept of endocrine disruption is controversial in some circles; how differing definitions of endocrine disruption and “adverse” outcomes shape public policy; and where the current capacity to evaluate chemicals for safety in a regulatory context begins and ends. Fundamental concepts of the EDC hypothesis, including critical windows of exposure and sexually dimorphic effects, are explained. A historical perspective on how the endocrine disruption hypothesis emerged and a summary of how and to what degree prototypical EDCs affect human brain health are provided as a prelude to a critical evaluation of the evidence linking EDC exposures to human neurobehavioral disorders. The book concludes with suggestions for future research needs and a summary of emerging technology that might prove more capable of effectively evaluating existing and new chemicals for endocrine-disrupting properties. The impossibility of disentangling the “science” of EDC action on the brain and behavior from its public health policy implications and economic influence is comprehensively addressed throughout.

scholarly journals Environmental Contamination and Human Exposure to Select Endocrine-Disrupting Chemicals: A Review

2021 ◽  
Vol 2 (2) ◽  
pp. 343-380
Author(s):  
Seethappan Sangeetha ◽  
Krishnamoorthi Vimalkumar ◽  
Bommanna G. Loganathan
Keyword(s):  
Environmental Contamination ◽  
Human Exposure ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine Disrupting Compounds ◽  
Indoor Dust ◽  
Future Research ◽  
Environmental Matrices ◽  
Aquatic Contamination ◽  
Endocrine Disrupting ◽  
Exogenous Compounds

Endocrine-disrupting compounds (EDCs) are exogenous compounds that interfere with the normal hormone functions and ultimately lead to health disorders. Parabens, phenols, and phthalates are well-known EDCs, produced globally in large quantities and widely used in a variety of applications. Several studies have monitored these compounds in a variety of environmental matrices, including air, water, sediment, fish, human tissues, soil, indoor dust, and biosolids, etc. In recent years, environmental contamination and human exposure to these chemicals have become a great concern, due to their residue levels exceeding the permissible/acceptable limits. In this review, we focus on the origin of these EDCs, aquatic contamination pathways, distribution, human exposure, health implications, and healthcare costs. Further, this review identifies critical challenges and future research needs in removing or minimizing environmental contamination and exposure to these chemicals to protect living resources.

scholarly journals Insights Into the Prevalence and Impacts of Phthalate Esters in Aquatic Ecosystems

2021 ◽  
Vol 9 ◽  
Author(s):  
N. D. Baloyi ◽  
M. Tekere ◽  
K. W. Maphangwa ◽  
V. Masindi
Keyword(s):  
Aquatic Ecosystems ◽  
Agricultural Land ◽  
Environmental Concern ◽  
Phthalate Esters ◽  
Aquatic Systems ◽  
Future Research ◽  
Waste Dumps ◽  
Endocrine Disrupting ◽  
Living Organisms ◽  
Indirect Route

Phthalate esters (PEs) are by far the most produced and extensively used synthetic organic chemicals with notable applications in many industrial products such as vinyl upholstery, adhesives, food containers, packaging materials, printing inks, adhesives, cosmetics, paints, pharmaceuticals munitions, and insecticides among other. PEs have long been recognised as ubiquitous organic pollutants of prime environmental concern, with urbanisation amongst the main cause and source of these compounds. Due to their notoriety, these compounds are known to pose devastating effects to living organisms including humans. The presence of PEs and their metabolites in the aquatic ecosystems is of concern primarily due to their endocrine disrupting and carcinogenicity properties. Several research studies have reported prevalence, exposure pathways, toxicity, and impacts of PEs in aquatic ecosystems and humans. Their principal routes of exposure could be direct or indirect, of which the direct route include contact, eating, and drinking contaminated foods, and the indirect route constitute aerosols, leaching and other forms of environmental contamination. PEs find way into water systems through means such as effluent discharges, urban and agricultural land runoff, leaching from waste dumps and other diffuse sources. High-end instrumentation and improved methodologies on the other hand have resulted in increased ability to measure trace levels (μg/L) of PEs and their metabolites in different matrices and ecological compartments of water or aquatic ecosystems such as lakes, oceans, rivers, sediments, wetlands and drinking water samples. In light of the above, this article provides an informed and focused information on the prevalence of phthalate esters in aquatic systems and related effects on living organisms and humans. Furthermore, techniques that have enabled the extraction and analysis of these PEs in aquatic samples are also explained. Future research outlooks and needs are also highlighted in this manuscript. This information will be used to better understand their temporal and spatial distributions in the aquatic systems and aid in devising prudent means to curtail their ecological footprints.

scholarly journals Endocrine-Disrupting Compounds: An Overview on Their Occurrence in the Aquatic Environment and Human Exposure

Water ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1347
Author(s):  
Concetta Pironti ◽  
Maria Ricciardi ◽  
Antonio Proto ◽  
Pietro Massimiliano Bianco ◽  
Luigi Montano ◽  
...  
Keyword(s):  
Aquatic Environment ◽  
Human Exposure ◽  
Emerging Contaminants ◽  
Endocrine Disrupting Compounds ◽  
Future Research ◽  
Early Puberty ◽  
Natural Substances ◽  
Endocrine Disrupting ◽  
Exposure Risks ◽  
High Concentrations

Endocrine-disrupting compounds (EDCs) as emerging contaminants have accumulated in the aquatic environment at concentration levels that have been determined to be significant to humans and animals. Several compounds belong to this family, from natural substances (hormones such as estrone, 17β-estradiol, and estriol) to synthetic chemicals, especially pesticides, pharmaceuticals, and plastic-derived compounds (phthalates, bisphenol A). In this review, we discuss recent works regarding EDC occurrence in the aquatic compartment, strengths and limitations of current analytical methods used for their detection, treatment technologies for their removal from water, and the health issues that they can trigger in humans. Nowadays, many EDCs have been identified in significant amounts in different water matrices including drinking water, thus increasing the possibility of entering the food chain. Several studies correlate human exposure to high concentrations of EDCs with serious effects such as infertility, thyroid dysfunction, early puberty, endometriosis, diabetes, and obesity. Although our intention is not to explain all disorders related to EDCs exposure, this review aims to guide future research towards a deeper knowledge of EDCs’ contamination and accumulation in water, highlighting their toxicity and exposure risks to humans.

Nanofiltration of endocrine disrupting compounds

2003 ◽  
Vol 3 (5-6) ◽  
pp. 321-327 ◽  
Author(s):  
M. Gallenkemper ◽  
T. Wintgens ◽  
T. Melin
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Compounds ◽  
Municipal Wastewater Treatment ◽  
Water And Wastewater Treatment ◽  
Wide Range ◽  
Endocrine Disrupting ◽  
Municipal Wastewater Treatment Plants ◽  
Set Up

Endocrine disrupting compounds can affect the hormone system in organisms. A wide range of endocrine disrupters were found in sewage and effluents of municipal wastewater treatment plants. Toxicological evaluations indicate that conventional wastewater treatment plants are not able to remove these substances sufficiently before disposing effluent into the environment. Membrane technology, which is proving to be an effective barrier to these substances, is the subject of this research. Nanofiltration provides high quality permeates in water and wastewater treatment. Eleven different nanofiltration membranes were tested in the laboratory set-up. The observed retention for nonylphenol (NP) and bisphenol A (BPA) ranged between 70% and 100%. The contact angle is an indicator for the hydrophobicity of a membrane, whose influence on the permeability and retention of NP was evident. The retention of BPA was found to be inversely proportional to the membrane permeability.

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