Navigation Links
How the environment could be damaging men's reproductive health

p of the food web, particularly are exposed to POPs."

The researchers found that larger amounts of both CB-153 and DDE in the blood of the fishermen was associated with a statistically significant increase in the proportion of Y chromosome bearing sperm in semen, and that age, smoking and hormone levels had no effect.

"When we compared the 20% of fishermen with the highest exposure with the 20% with the lowest exposure, DDE was associated with an increase of 1.6% in sperm with Y chromosomes and CB-153 with an increase of 0.8%. To our knowledge this is the first study to show that the distribution of the sex chromosomes in sperm can be affected by exposure to POPs," said Prof Giwercman.

The study did not enable them to discover whether the increase in Y chromosome sperm would lead to an increase in boys being born, or what might be the mechanism involved. "We need a much larger population in order to investigate the implications of these changes on sex ratio of offspring as the number of children born to these fishermen was small.

"However, we think the fact that exposure to environmentally derived chemicals can change the sex chromosome ratio in sperm is worrying in itself and requires more attention from scientists and the public," said Prof Giwercman.

The second study by researchers from Denmark, Lithuania and Finland[2] suggests that a higher than expected prevalence of cryptorchidism (undescended testes) in Lithuania could be occurring because changing environmental factors are affecting the reproductive development of male foetuses.

Babies born with undescended testes are at higher risk of developing testicular cancer between the ages of about 20 and 40, and of having infertility problems. Cryptorchidism is one of the symptoms of testicular dysgenesis syndrome (TDS) ?a collection of male reproductive disorders, possibly caused by errors in development of the foetal testes.

The Lithuanian study investigated
'"/>

Source:European Society for Human Reproduction and Embryology


Page: 1 2 3 4

Related biology news :

1. Scientists collaborate to assess health of global environment
2. Study reveals new technique for fingerprinting environmental samples
3. Compounds in plastic packaging act as environmental estrogens altering breast genes
4. UN environmental agency steps up battle against marine pollution
5. Grass makes environmentally friendly biofuel
6. Two studies document rise of superbugs in the environment
7. MRSA study demonstrates need for frequent hand washing and environmental disinfection in health care settings
8. A radical solution for environmental pollution
9. Lactose intolerance linked to ancestral environment
10. NIEHS launches website with information for assessing environmental hazards from Hurricane Katrina
11. Plant genes identified that can form basis for crops better adapted to environmental conditions
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How the environment could damaging men reproductive health

(Date:12/17/2014)... , Dec. 16, 2014  Automation is ... this more evident than at international borders. Over ... document scanners have allowed veteran travelers to self ... Passport Control (APC) Kiosks at an increasing number ... globe. According to Maxine ...
(Date:12/11/2014)... , Dec. 10, 2014  Data Sciences International ... has released a new series of digital telemetry ... toxicology researchers. M series, part of the PhysioTel™ ... the best possible physiologic data when incorporating functional ... functional endpoints to toxicology studies has evolved from ...
(Date:12/10/2014)... --Research and Markets ( http://www.researchandmarkets.com/research/xclcvw/biometrics_market ) ... Market in Japan 2014-2018" report to their ... The integration of biometrics and smart ... upgradation of the driver,s license is one of ... the aforementioned projects, biometrics is being used as ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2New telemetry implants expected to change how large animal toxicology studies are conducted 2Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2
... It,s the year 2060, and 75 percent of drivers ... vehicles that emit only water vapor. Look into Shane ... and find that air quality has significantly improved. Greenhouse gas ... and levels of microscopic soot and ozone are about 15 ...
... organisms that become resistant to antibiotics are a serious threat ... evolution. In a new project, researchers at the University of ... pace of evolution, in order to ensure that the drugs ... of infectious organisms to antibiotics is particularly serious in drugs ...
... study pitting academic expertise against a computer in recreating ... there is no substitute for wisdom born out of ... identification versus computer analysis in reconstructing fossils. The investigation, ... the most specialized experts provided the most reliable identifications. ...
Cached Biology News:Glimpsing a greener future 2Slowing evolution to stop drug resistance 2Study pits man v. machine in piecing together 425-million-year-old jigsaw 2
(Date:12/19/2014)... ME (PRWEB) December 18, 2014 Ed ... director of the Center for Excellence in the Neurosciences ... New England, has been selected as a member of ... is the first neuroscientist from Maine to receive this ... nonprofit organization supported entirely by the Dana Foundation. ...
(Date:12/19/2014)... 2014 The empty capsules market ... ageing population and technological innovations in the empty ... are catalysing the growth of the empty capsules ... , Scope of Report , The report ... new entrants/smaller firms to gauge the pulse of ...
(Date:12/19/2014)... , Dec. 18, 2014   ISN ... & Safety Performance Indicators publication series. With ... of activity reported in 2013 within its online contractor ... and safety key performance indicator (KPI) statistics. ... Clients, U.S. publication is available in two ...
(Date:12/17/2014)... (PRWEB) December 16, 2014 “Never ... at Philipps- Universität Marburg’s Department of Physics, advises ... in the newly released SPIE Women in ... be too shy to ask questions.” , In ... engineering, and mathematics) occupations ranging from university professor ...
Breaking Biology Technology:UNE's Ed Bilsky Named Member of Dana Alliance for Brain Initiatives 2UNE's Ed Bilsky Named Member of Dana Alliance for Brain Initiatives 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 2Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 4ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3
... and ... Mass., Aug. 16 Boston Scientific,Corporation (NYSE: BSX ) ... Surgery and Vascular Surgery businesses as part of the,Company,s plan ... strategic, and to strengthen its operating and financial,performance. "As ...
... Viability of Stem Cells Derived from ... Media, BOTHELL, Wash., Aug. 17 BioLife Solutions,Inc. ... of,proprietary hypothermic storage and cryopreservation media products for,cells, tissues, ... of preservation media to the New England Cryogenic Center, ...
... Digital Union announced today they,have entered into ... Genetics Group) in Region 3 to provide RealTime1(TM) ... Puerto Rico and the,US Virgin Islands. The Region ... received additional funding for another five-year period.,With this ...
Cached Biology Technology:Boston Scientific to Explore Sale of Cardiac Surgery and Vascular Surgery Businesses 2Boston Scientific to Explore Sale of Cardiac Surgery and Vascular Surgery Businesses 3BioLife Solutions Announces Exclusive CryoStor(TM) Supply Agreement With the New England Cryogenic Center, Inc. 2BioLife Solutions Announces Exclusive CryoStor(TM) Supply Agreement With the New England Cryogenic Center, Inc. 3Digital Union's RT1(TM) Software Creates Telegenetics Network for Region 3 Genetics Collaborative 2
Sheep polyclonal to Salmonella Shoreditch ( Abpromise for all tested applications). Antigen: Native Salmonella shoreditch (Group D2)....
anti-achaete...
... Super-Sensitive, Super-Dark, Super-Small! ... with the ChemiDoc-It Imaging System. High-sensitivity ... produces low-background noise and wide dynamic ... a short exposure time. The light-tight ...
... Based Oligonucleotide) Genome Set and MEEBO (Mouse ... contain a collection of open source oligo ... allowing interrogation of thousands of genes. Developed ... University and UCSF, the sets enable the ...
Biology Products: