Featured Research

from universities, journals, and other organizations

Do Chemicals In The Environment Affect Fertility?

Date:
May 20, 2008
Source:
University of Nottingham
Summary:
Researchers are set to take part in one of the first studies of the effect of environmental chemicals on female mammals. 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.

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.


Story Source:

The above story is based on materials provided by University of Nottingham. Note: Materials may be edited for content and length.


Cite This Page:

University of Nottingham. "Do Chemicals In The Environment Affect Fertility?." ScienceDaily. ScienceDaily, 20 May 2008. <www.sciencedaily.com/releases/2008/05/080520100058.htm>.
University of Nottingham. (2008, May 20). Do Chemicals In The Environment Affect Fertility?. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/05/080520100058.htm
University of Nottingham. "Do Chemicals In The Environment Affect Fertility?." ScienceDaily. www.sciencedaily.com/releases/2008/05/080520100058.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins