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:8/20/2014)... UT (PRWEB) August 20, 2014 ... Solution, announced the publication of a new eBook, ... Benefits, many small business owners feel uncertain about ... their family, and their bottom line. , The ... FAQs, and helps businesses navigate their upcoming health ...
(Date:8/20/2014)... A new trend in the insurance ... before issuing an approximate quote for insurance coverage, according ... helping the public to obtain life insurance quotes without ... http://quotespros.com/life-insurance.html . , The coverage industry has changed ... appeared in many U.S. states. Some consumers are now ...
(Date:8/20/2014)... August 20, 2014 Locating rates for insurance ... the Quotes Pros website. A new source of term life ... review rates good for all 50 states at http://quotespros.com/life-insurance.html ... one of the new methods available for the public to ... that are supplied. The instant quotations that are available are ...
(Date:8/20/2014)... (PRWEB) August 20, 2014 Ticket Down ... tickets in NYC. In just a week, the U.S. ... King Tennis Center. The event was originally founded in 1881 and ... Rafael Nadal was forced to withdrawal from the event because of ... women’s tournament and will return to New York City with hopes ...
(Date:8/20/2014)... Aug. 19, 2014 (HealthDay News) -- A group representing ... get a flu shot. According to the American ... in recent years have upheld the safety and effectiveness ... is highly infectious and can be particularly dangerous to ... and other complications," Dr. Laura Riley, chair of the ...
Breaking Medicine News(10 mins):Health News:Life Insurance Quotes Without Medical Exams Now Displayed to Adults at Insurance Website 2Health News:Term Life Insurance Price Database Now Helps Quote Prices for Adults in 50 States Online 2Health News:2014 U.S. Open Tennis Tickets: Ticket Down Slashes Ticket Prices on All US Open Tennis Championship Sessions in New York at Arthur Ashe Stadium 2Health News:2014 U.S. Open Tennis Tickets: Ticket Down Slashes Ticket Prices on All US Open Tennis Championship Sessions in New York at Arthur Ashe Stadium 3Health News:2014 U.S. Open Tennis Tickets: Ticket Down Slashes Ticket Prices on All US Open Tennis Championship Sessions in New York at Arthur Ashe Stadium 4Health News:2014 U.S. Open Tennis Tickets: Ticket Down Slashes Ticket Prices on All US Open Tennis Championship Sessions in New York at Arthur Ashe Stadium 5Health News:All Pregnant Women Need Flu Shot: Ob/Gyn Group 2
(Date:8/20/2014)... LUTHERVILLE, Md. , Aug. 20, 2014 /PRNewswire/ ... today lauded the latest results achieved by the ... known as the National Precursor Log Exchange (NPLEx), ... enforcement officials track down meth offenders and make ... in Indiana blocked the ...
(Date:8/20/2014)... Md. , Aug. 20, 2014  The ... lauded the latest results achieved by the real-time, ... as the National Precursor Log Exchange (NPLEx), automatically ... officials track down meth offenders and make arrests. ... Kentucky blocked the sale ...
(Date:8/20/2014)... 20, 2014 The National Association of ... results achieved by the real-time, pseudoephedrine (PSE) blocking ... Precursor Log Exchange (NPLEx), automatically blocks unlawful pseudoephedrine ... meth offenders and make arrests. Data released by ... blocked the sale of more than ...
Breaking Medicine Technology:Indiana's Stop-Sale System Achieves Significant Results In Battle Against Meth 2Kentucky's Stop-Sale System Achieves Significant Results In Battle Against Meth 2Kansas's Stop-Sale System Achieves Significant Results In Battle Against Meth 2
Cached News: