Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Do chemicals in the environment affect fertility?

21.05.2008
Our day-to-day exposure to chemicals is on the increase. From food packaging to the air we breathe, every day contact with potentially-toxic substances could be affecting our health — and our fertility.

Researchers at The University of Nottingham are set to take part in one of the first studies of the effect of environmental chemicals on female mammals. Part of the Reproductive Effects of Environmental Chemicals in Females Consortium (REEF), Dr Richard Lea of the School of Veterinary Medicine and Science and Dr Kevin Sinclair of the School of Biosciences will receive a £500,000 grant for their work researching how these chemicals impact on mammalian fertility. REEF will receive a total of £2.4m in funding from the EU.

Dr Lea and Dr Sinclair will study the impact of low levels of environmental chemicals on sheep foetuses in the womb. The specific chemicals to be studied are found in human sewage sludge which is frequently spread on fields where sheep graze prior to entering the human food chain.

The amount of chemicals absorbed is thought to be so minute that they would be difficult to discern through testing. However, through a process known as bioaccumulation, chemicals can become concentrated in individuals over a number of years, stored mostly in fat tissue. Though these chemicals may not be directly harmful to these individuals, if they are passed on — for example, through gestation in the womb or through the food chain — they might have consequences for human health.

“One of the concerns of bioaccumulation is that when the fat is broken down and passed on — for example during the breast feeding process — the offspring are exposed to a concentration of chemicals that the mother has built up over the years,” said Dr Sinclair.

Colleagues in Aberdeen have provided precise measurements of specific chemicals in the environment and in animal tissues. These often take the form of chemicals which mimic hormones.

“These chemicals come from a variety of sources including plastics, pesticides and industrial waste and many of these persist in the environment for a long time — albeit at very low levels,” said Dr Lea. “The problem is even low levels can still have an effect.”

The three-year study will look at how chemicals are passed on from mother to foetus, and how this impacts on the foetus. It is thought that, although this generation of animals may have no problems getting pregnant, the next and future generations could have fertility problems stemming from exposure to environmental chemicals in the womb.

Dr Lea said: “Though male fertility has been the subject of studies in recent years, this will be the first time that female fertility has been examined. Currently, less is known about the effects of hormone-like chemicals on the developing female foetus, so the consequences for reproductive development in females may be greater than in males.”

“We’re not talking about obvious congenital defects here, but tiny changes caused by exposure to chemicals that have an impact on reproductive function — changes over generations rather than immediate effect,” added Dr Sinclair.

The inaugural meeting of the REEF consortium will take place in Copenhagen on Thursday 22 and Friday 23 May to formally launch the project.

Emma Thorne | alfa
Further information:
http://www.nottingham.ac.uk

More articles from Ecology, The Environment and Conservation:

nachricht Upcycling 'fast fashion' to reduce waste and pollution
03.04.2017 | American Chemical Society

nachricht Litter is present throughout the world’s oceans: 1,220 species affected
27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

DGIST develops 20 times faster biosensor

24.04.2017 | Physics and Astronomy

Nanoimprinted hyperlens array: Paving the way for practical super-resolution imaging

24.04.2017 | Materials Sciences

Atomic-level motion may drive bacteria's ability to evade immune system defenses

24.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>