HOME >> MEDICINE >> NEWS
Teenage boys exposed to environmental pollutants

A research letter in this week's issue of THE LANCET provides further evidence that adolescent boys exposed to organic pollutants are less likely to father a male child in adulthood.

Investigators from the National Cheng Kung University Medical College, Taiwan, and the London School of Hygiene and Tropical Medicine, UK, studied the sex of over 2000 children born to individuals involved in the Yucheng oil accident, Taiwan, in 1979. These individuals were exposed to high concentrations of polychlorinated biphenyls (PCBs) by the ingestion of cooking oil. PCBs are more widely present at much lower concentrations.

Men exposed to PCBs before age 20 years had a 35% lower chance of having a baby boy than individuals matched for age and location who were not exposed to the pollutants. The male to female ratio for men exposed after 20 years of age was only 10% lower than in the control population; there was no significant difference in the male to female birth ratio among exposed women compared with women in the control population.

Yueliang Leon Guo comments: "The factors that determine sex are still under investigation, and the mechanisms of action that explain sex-ratio alterations are not yet understood. Sexual differentiation in human beings is controlled by genetic and hormonal factors. We propose that dioxin-like compounds might have a negative effect on the viability of the Y-chromosome carrying sperm or on the development of XY-fertilised eggs."


'"/>

Contact: Richard Lane
richard.lane@lancet.com
44-20-7424-4949
Lancet
11-Jul-2002


Page: 1

Related medicine news :

1. Teenage highs and lows
2. Teenage hormone therapy to reduce adult height of tall girls linked to reduced fertility
3. Teenage smoking still worryingly high: Girls twice as likely as boys to puff away
4. Teenagers with cancer are missing out on vital services
5. UK Teenage Cancer Trust demands government action to aid young cancer patients
6. Teenage girls lacking in vitamin D
7. Teenagers, drinking and driving: a quick trip to the grave
8. Exercise Is The Best Means Of Weight Control In Teenagers
9. Higher Prices Wont Stop Teenage Smokers
10. Studies Find Public Policies For Children And Teenagers Not Very Effective
11. Combination Of Interventions Are Found To Be Most Effective In Improving Driving Behavior Among Teenagers

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Teenage boys exposed environmental pollutants

(Date:4/17/2014)... at the University of California, San Diego School of ... who have suffered a recent major loss are more ... adults. , The study is published in this month,s ... . , Because compassionate behaviors are associated with better ... offer insights into ways to improve the outcomes of ...
(Date:4/17/2014)... created a new technology for modifying human cells ... body and selectively target cancer and other sites ... monitor and modify human physiology is a promising ... technology enabled bioengineers to build such devices that ... a customized fashion. , "The project addressed a ...
(Date:4/17/2014)... cause of neuronal death in Parkinson,s disease is still ... be mistaken for foreign invaders and killed by the ... diseases like type I diabetes, celiac disease, and multiple ... April 16, 2014, in Nature Communications . , ... Parkinson,s disease; but if true, it could lead to ...
(Date:4/17/2014)... April 17, 2014 EcoHealth Alliance, a nonprofit organization ... published a comprehensive review today examining the current state ... The review calls for improved global surveillance strategies to ... recent outbreak of Ebola in West Africa that has ... of Guinea and Liberia. According to the World ...
(Date:4/17/2014)... April 2014) Population Council scientists and their partners have ... and can prevent the transmission of multiple sexually transmitted ... animals: HIV, herpes simplex virus 2 (HSV-2), and human ... data that the gel is effective against multiple strains ... the vagina against all three viruses of at least ...
Breaking Medicine News(10 mins):Health News:The ilk of human kindness 2Health News:Building 'smart' cell-based therapies 2Health News:Is Parkinson's an autoimmune disease? 2Health News:Re-emergence of Ebola focuses need for global surveillance strategies 2Health News:Re-emergence of Ebola focuses need for global surveillance strategies 3Health News:Animal study provides first evidence that gel can prevent multiple virus transmission in vagina/rectum 2
(Date:1/15/2014)... NEW YORK , Jan. 15, 2014 ... research report is available in its catalogue: ... Technologies for Advanced Drug Delivery Systems -- ... http://www.reportlinker.com/p01940411/Global-Markets-and-Technologies-for-Advanced-Drug-Delivery-Systems----Focus-on-End-Users.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Drug_Delivery_Technology STUDY OBJECTIVES ...
(Date:1/14/2014)... , Jan. 14, 2014 HeartWare International, ... innovator of less invasive, miniaturized circulatory support technologies that ... announced that it expects revenues for the fourth quarter ... full-year 2013 revenues to approximately $208 million. ...
(Date:1/14/2014)... Pa. , Jan. 14, 2014 Dynamic Healthcare Services, ... announced today that it acquired Progressive Home Medical Equipment, Inc. ... 7, 2014. The terms of the acquisition were not disclosed. ... equipment ("DME") company providing a wide range of sleep, mobility, ...
Breaking Medicine Technology:Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 2Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 3Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 4Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 5Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 6Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 7Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 8Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 9Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 10Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 11Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 12Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 13Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 14Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 15Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 16Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 17Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on End Users 18HeartWare International Announces Preliminary Fourth Quarter 2013 Revenues 2HeartWare International Announces Preliminary Fourth Quarter 2013 Revenues 3HeartWare International Announces Preliminary Fourth Quarter 2013 Revenues 4Dynamic Healthcare Services Completes Progressive Home Medical Equipment of Clarion, PA Investment 2Dynamic Healthcare Services Completes Progressive Home Medical Equipment of Clarion, PA Investment 3
Cached News: