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:7/31/2015)... ... 2015 , ... Intellitec Solutions announced today they have expanded ... GP for a senior living facility in Maine. Having achieved recognition as a ... 16 states. This further expansion was again a factor of the firm’s success ...
(Date:7/30/2015)... ... , ... When responsible for the care of an aging loved one, summer ... mind: What happens if mom falls? Who will remind Dad to take his medications? ... But not taking time away from caregiving responsibilities can lead to bigger problems – ...
(Date:7/30/2015)... (PRWEB) , ... July 31, 2015 , ... On July ... meeting in Manatee county to discuss plausible solutions for controlling the heroin outbreak. Ultimately ... event of an overdose is largely perpetuating the heroin crisis in North Florida. The ...
(Date:7/30/2015)... Austin, Texas (PRWEB) , ... July 30, 2015 ... ... Critical Path Institute (C-Path), and TransCelerate BioPharma, Inc. are pleased to announce that ... Dyslipidemia have been published for use on the CDISC website . These ...
(Date:7/30/2015)... ... July 30, 2015 , ... Women's dating coach Simone Myers ... for women interested in improving their love lives using specific "lines" designed to ... to the public early this morning, has drawn praise from several dating and ...
Breaking Medicine News(10 mins):Health News:Intellitec Solutions Expands Long term Care ERP Offerings to Maine 2Health News:Aging Life Care Association™ Experts Offer Tips for Caregivers in Need of Vacation Time 2Health News:Aging Life Care Association™ Experts Offer Tips for Caregivers in Need of Vacation Time 3Health News:Manatee County’s Opioid Task Force Calls for More Funding and Face to Face Counseling After Overdose 2Health News:Manatee County’s Opioid Task Force Calls for More Funding and Face to Face Counseling After Overdose 3Health News:CDISC Releases Clinical Research Data Standards for Schizophrenia, Hepatitis C and Dyslipidemia 2Health News:CDISC Releases Clinical Research Data Standards for Schizophrenia, Hepatitis C and Dyslipidemia 3Health News:CDISC Releases Clinical Research Data Standards for Schizophrenia, Hepatitis C and Dyslipidemia 4Health News:CDISC Releases Clinical Research Data Standards for Schizophrenia, Hepatitis C and Dyslipidemia 5Health News:Lovetraction Lines - Review Examining Simone Myers' New Online Course Released 2
(Date:7/30/2015)... LAGUNA HILLS, Calif. , July 30, 2015 ... developing nanoparticle drug delivery platforms, has received Orphan ... (FDA) for a second drug product that uses ... is a formulation of dactinomycin for the treatment ... bone cancer. The FDA granted NanoSmart,s Orphan Drug ...
(Date:7/30/2015)... , July 30, 2015  Arena Pharmaceuticals, Inc. (NASDAQ: ... conference call and webcast at 5:00 p.m. Eastern Time ... to discuss second quarter 2015 financial results and provide ... after the NASDAQ Global Select Market closes that day. ... dialing 877.643.7155 for domestic callers and 914.495.8552 for international ...
(Date:7/30/2015)... , July 30, 2015 EnteroMedics Inc. ... using neuroblocking technology to treat obesity, metabolic diseases and ... a conference call on Thursday, August 6, 2015, at ... the second quarter ended June 30, 2015, and to ... vBloc® Neurometabolic Therapy, delivered via the Maestro® System. ...
Breaking Medicine Technology:NanoSmart Receives Second FDA Orphan Drug Designation for Treatment of Pediatric Cancer 2Arena Pharmaceuticals to Host Second Quarter 2015 Financial Results and Corporate Update Conference Call and Webcast on Wednesday, August 5 2Arena Pharmaceuticals to Host Second Quarter 2015 Financial Results and Corporate Update Conference Call and Webcast on Wednesday, August 5 3Arena Pharmaceuticals to Host Second Quarter 2015 Financial Results and Corporate Update Conference Call and Webcast on Wednesday, August 5 4EnteroMedics to Host Second Quarter 2015 Financial Results and Company Update Conference Call 2EnteroMedics to Host Second Quarter 2015 Financial Results and Company Update Conference Call 3
Cached News: