How the environment could be damaging men's reproductive health

Two Scandinavian studies have provided further evidence that environmental factors could be affecting men's reproductive health.

The studies, published online today (Thursday 28 April) in Europe's leading reproductive medicine journal Human Reproduction, suggest that environmental pollutants could be changing the ratio of sperm carrying the X or Y (sex determining) chromosomes and that they could be contributing towards male reproductive disorders.

A study by Swedish researchers[1] is the first to show that exposure to persistent organochlorine pollutants (POPs) can affect the distribution of sex chromosomes in sperm, leading to a slight increase in the number of sperm bearing the Y chromosome

Aleksander Giwercman, professor of andrology at the Scanian Andrology Centre, Fertility Centre, Malm University Hospital, Lund University, Sweden, and his colleagues looked at the effect of two POPs (CB-153 and DDE) on semen in 149 Swedish fishermen, aged between 27 and 67, some of whom fished off the east coast in the contaminated Baltic Sea, while others fished off the west coast.

Prof Giwercman explained: "Closed aquatic ecosystems, such as the Baltic Sea, have become heavily polluted by POPs. In spite of decreases since the 1970s, this contamination has resulted in higher levels of POPs in humans, such as fishermen, who consume large quantities of local fatty fish."

POPs enter the environment in a number of ways. Tarmo Tiido, co-author and PhD student at the Fertility Centre, said: "The sources of contamination for POPs are closely related to human activities such as domestic and industrial discharge, automobile exhausts, street run-off, slum sewage and agricultural chemicals. POPs from polluted soils are washed off the land into the sea. Additionally, the atmosphere plays an important role in their transport over long distances. POPs have a strong tendency to bioaccumulate in marine and terrestrial food webs. Humans, being at the t

Contact: Emma Mason
European Society for Human Reproduction and Embryology

Page: 1 2 3 4

Related biology news :

1. Renewable energy wrecks environment
2. How plants learned to respond to changing environments
3. Revolutionary global environment fund announces $50M expansion
4. Common environmental chemicals in diet affect fetal ovarian development
5. Early environmental exposure may accelerate age-related neurodegeneration
6. Giant magnetocaloric materials could have large impact on the environment
7. Innovative subsea separation technology wins 2007 EUREKA environmental award
8. CSHL scientists successfully target tumor microenvironment to stop cancer growth
9. Microbes at work cleaning up the environment
10. Pre-cancerous blood diseases can be products of their environment
11. Chemical Society Boston meeting, Aug. 19-23, focuses on health, wellness, energy, environment

Post Your Comments:

(Date:11/17/2015)... 17, 2015  Vigilant Solutions announces today that Mr. ... of Directors. --> --> ... from the partnership at TPG Capital, one of the ... $140 Billion in revenue.  He founded and led TPG,s ... TPG companies, from 1997 to 2013.  In his first ...
(Date:11/16/2015)... SAN JOSE, Calif. , Nov 16, 2015 ... leading developer of human interface solutions, today announced ... new Synaptics TouchView ™ touch controller and ... the architectural revolution of smartphones. These new TDDI ... and include TD4100 (HD resolution), TD4302 (WQHD resolution), ...
(Date:11/12/2015)... Mass. , Nov. 12, 2015  Arxspan ... Institute of MIT and Harvard for use of ... discovery information management tools. The partnership will support ... both biological and chemical research information internally and ... will be used for managing the Institute,s electronic ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... , ... The Academy of Model Aeronautics (AMA), led by its Executive Council, ... Grand Prix, to represent the First–Person View (FPV) racing community. , FPV racing has ... type of racing and several new model aviation pilots have joined the community because ...
(Date:11/24/2015)... CITY , Nov. 24, 2015 /PRNewswire/ - ... "Company") announced today that the remaining 11,000 post-share ... Share Purchase Warrants (the "Series B Warrants") subject ... were exercised on November 23, 2015, which will ... Shares.  After giving effect to the issuance of ...
(Date:11/24/2015)... ... November 24, 2015 , ... Creation ... on being named to Deloitte's 2015 Technology Fast 500 list of the fastest ... AcceleDent®, a FDA-cleared, Class II medical device that speeds up orthodontic tooth movement ...
(Date:11/24/2015)... VILLAGE, Nev. , Nov. 24, 2015  PDL BioPharma, ... John P. McLaughlin , the company,s president and chief executive ... Jaffray Healthcare Conference next week in New York ... will occur on Tuesday, December 1, 2015 at 9:30 a.m. ... Presentations." Please connect to the website at least 15 minutes ...
Breaking Biology Technology:
Cached News: