Navigation Links
Research proves 'gender-bending' chemicals affect reproduction
Date:10/26/2010

New research has provided the first evidence that 'gender bending' chemicals which find their way from human products into rivers and oceans can have a significant impact on the ability of fish to breed in UK Rivers.

The findings from the four year study, led by the universities of Exeter and Brunel, has important implications for understanding the impacts of these chemicals on ecosystem health and possibly on humans.

Endocrine disrupting chemicals (EDCs) disrupt the ways that hormones work in the bodies of vertebrates (animals with backbones), including humans.

They can be found in everything from female contraceptive drugs and hormone replacement therapy pills, to washing up liquid, with the most well studied EDCs being those that mimic oestrogen (female hormone).

EDCs have been seeping into rivers through the sewage system for decades and have an observed effect on fish, altering male biology to make them more female hence the 'gender bending' reputation of these chemicals.

Until now, there has been no solid evidence to show the long-term impact of this effect on fish in the wild - but the new research focusing on wild roach in two UK rivers (Bourne and Arun) has provided new evidence.

Two large-scale breeding studies assessed the ability of fish to breed by using a genetic technique (DNA microsatellites) to match offspring produced to their parents.

It was found that intersex fish those that had their sexuality compromised by EDCs and which contain both male (sperm) and female (eggs) sex cells had their reproductive performance reduced by up to 76%.

Charles Tyler, from the University of Exeter's Biosciences department, jointly led the research alongside Professor John Sumpter, from the Institute of Environment at Brunel University.

Prof Tyler said: "This is the first time we've seen firm evidence that the intersex fish, males that have been feminised by EDCs, have a redu
'/>"/>

Contact: Daniel Williams
d.d.williams@exeter.ac.uk
44-139-272-2062
University of Exeter
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Worlds largest, most complex marine virus is major player in ocean ecosystems: UBC research
2. UF research gives clues about carbon dioxide patterns at end of Ice Age
3. Researchers find a stable way to store the suns heat
4. UMD to lead $5 million NSF-funded research partnership to develop drought-tolerant canola crops
5. UMMS biomedical researchers develop more reliable, less expensive synthetic graft material
6. NSF awards grants for research on coupled natural and human systems
7. Entire issue of scientific journal devoted to center headed by Scripps Research Scientists
8. Malaria research begins to bite
9. Strategies for translational research in the UK
10. Researchers develop first implanted device to treat balance disorder
11. LSUHSC awarded $12 million for cancer, infectious diseases research & research pipeline
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Research proves 'gender-bending' chemicals affect reproduction
(Date:8/10/2015)... Germany , August 10, 2015 ... in Eye Tracking Technology for more than two decades, ... Platform for integration into all consumer display formats. The ... seamless integration of eye tracking into consumer tablets, laptops, ... reality smart glasses. Omnivision,s leading sensor technology contributes to ...
(Date:8/5/2015)... , August 5, 2015 ... & Access Management Market by Software, Services, Vertical (BFSI, Airport, ... & Geography - Global Forecast to 2020", published by ... Management Market globally into various segments. The global PIAM ... 2014 to $546.2 Million by 2019, at a CAGR ...
(Date:8/3/2015)... , Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... solutions, today announced that members of the executive management ... Pacific Crest Global Technology Leadership Forum on Tuesday, August ... will be held at the Sonnenalp Resort in ... presentation may include forward-looking information. An audio webcast of ...
Breaking Biology News(10 mins):SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 3Physical Identity and Access Management Market Worth $546.2 Million by 2019 2Physical Identity and Access Management Market Worth $546.2 Million by 2019 3Physical Identity and Access Management Market Worth $546.2 Million by 2019 4
... Innovative Vector Control Consortium (IVCC) and Syngenta announced ... new Actellic 300CS micro-encapsulated formulation demonstrate effective control ... for more than eight months. Developed ... evaluations by Syngenta and IVCC partner laboratories in ...
... 22, 2010 Scientists at The Scripps Research Institute and ... shed new light on the molecular mechanism that enables us ... stove. In addition to contributing to our knowledge of basic ... for conditions such as acute or chronic inflammatory pain. ...
... Tenn., April 22, 2010 -- Mimicking the human nervous system ... of a method developed at Oak Ridge National Laboratory to ... other properties that make them attractive to use as artificial ... make bundles with enough fibers to match that of a ...
Cached Biology News:IVCC and Syngenta reach key insecticide development milestone 2New Scripps Research and GNF study helps explain how we can sense temperatures 2New Scripps Research and GNF study helps explain how we can sense temperatures 3New Scripps Research and GNF study helps explain how we can sense temperatures 4New ORNL carbon composite holds promise for bionics 2
(Date:8/27/2015)... ... August 27, 2015 , ... Capital Edge Consulting , a nationwide ... pleased to announce their ranking as one of the top 5000 companies listed on ... companies across the nation. , “It is truly an honor to be recognized as ...
(Date:8/27/2015)... 27, 2015 The National Necrotizing Fasciitis ... life—were saved by doctors at Vanderbilt University Hospital in ... NovaBay Pharmaceuticals and Dr. John Crew , director ... Seton Medical Center in Daly City, CA. ... breakthrough approach, pioneered by Dr. Crew, that had previously ...
(Date:8/27/2015)... , Aug. 27, 2015 HUYA Bioscience International ... of the Japan Society of HTLV-1, held this week ... The purpose of the Society is to promote research ... development of medical technology and research related to these ... "HUYA is proud to support this prestigious ...
(Date:8/27/2015)... ... 27, 2015 , ... METTLER TOLEDO's web-based EasyFinder™ ... choices to a manageable shortlist of bench and floor scales and terminals. Specifying ... best with the customer’s industry and application. , Side-by-side product comparisons and ...
Breaking Biology Technology:Capital Edge Consulting Makes Inc. 5000 List of America’s Fastest-Growing Private Companies 2Capital Edge Consulting Makes Inc. 5000 List of America’s Fastest-Growing Private Companies 3Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4METTLER TOLEDO Updates Online Scale Selection Tool 2
... (Santa Barbara, Calif.) A team of physicists at UC ... many different colors. By aiming high- and low-frequency laser beams ... from their cores, accelerated, and then smashed back into the ... light simultaneously. Their findings appear in the current issue of ...
... 2012  Islet Sciences, Inc., (OTC.BB: ISLT) a biotechnology ... of patented technologies in the field of transplantation ... its subsidiary DiaKine Therapeutics Inc. received European patent ... be used to treat diabetes, atherosclerosis and other ...
... RIDGE, N.J., March 28, 2012  Regado Biosciences, Inc., a ... with active control agents, announced that David J. Mazzo, ... & Company,s 11th Annual Healthcare Conference at 10 a.m. ... Palace Hotel in New York City. The ...
Cached Biology Technology:UCSB Physicists mix 2 lasers to create light at many frequencies 2UCSB Physicists mix 2 lasers to create light at many frequencies 3Islet Sciences Announces DiaKine Therapeutics' Novel Diabetes, Atherosclerosis Drugs Receives European Patent Protection 2Islet Sciences Announces DiaKine Therapeutics' Novel Diabetes, Atherosclerosis Drugs Receives European Patent Protection 3Regado Biosciences, Inc. to Present at Needham & Company's 11th Annual Healthcare Conference in New York, NY 2Regado Biosciences, Inc. to Present at Needham & Company's 11th Annual Healthcare Conference in New York, NY 3