Featured Research

from universities, journals, and other organizations

Men With Higher Levels Of PCBs More Likely To Father Boys

Date:
January 29, 2002
Source:
Michigan State University
Summary:
A Michigan State University study indicating that men with higher levels of PCBs in their bodies are more likely to father boys than girls is more evidence of the effects environmental contaminants can have on the human body.

A Michigan State University study indicating that men with higher levels of PCBs in their bodies are more likely to father boys than girls is more evidence of the effects environmental contaminants can have on the human body.

Related Articles


The study, using data from three separate studies in which PCB levels were measured in the bodies of men who ate fish taken from Lake Michigan, found that of the 208 children born to those men, more than 57 percent were boys.

The paper was published in the recent issue of the Journal of Occupational and Environmental Medicine.

"We do not wish to say that having a baby boy is bad, it's just that there were more of them," said Wilfried Karmaus, MSU associate professor of epidemiology, who directed the study. "A change in the proportion of boys to girls, however, indicates that environmental contaminants may play a role in human reproduction."

PCBs are among a number of environmental contaminants that have plagued the Great Lakes for years. They can come from any number of sources, including hydraulic fluids and oils, electrical capacitors and transformers, and a by-product of paper mills that dot the shoreline.

Among the potential dangers of PCBs: disruption of the body's endocrine system and a possible carcinogen.

In this study, Karmaus and colleagues restricted their research to children born after 1963 and to families in which PCB levels were detectable in both fathers and mothers. This was a total of 208 children from 101 families.

They found that men with PCB concentrations of at least 8.1 micrograms per liter of blood were more likely to father boys.

"However," Karmaus said, "we did not detect that the PCB levels of mothers affected the number of boys or girls."

Also participating in the study was Suiying Huang, a former graduate student in MSU's Department of Epidemiology, and Lorraine Cameron of the Michigan Department of Community Health.

The research was funded by a grant from the Agency for Toxic Substances and Disease Registry.


Story Source:

The above story is based on materials provided by Michigan State University. Note: Materials may be edited for content and length.


Cite This Page:

Michigan State University. "Men With Higher Levels Of PCBs More Likely To Father Boys." ScienceDaily. ScienceDaily, 29 January 2002. <www.sciencedaily.com/releases/2002/01/020129073314.htm>.
Michigan State University. (2002, January 29). Men With Higher Levels Of PCBs More Likely To Father Boys. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2002/01/020129073314.htm
Michigan State University. "Men With Higher Levels Of PCBs More Likely To Father Boys." ScienceDaily. www.sciencedaily.com/releases/2002/01/020129073314.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com
These Popular Antibiotics Can Cause Permanent Nerve Damage

These Popular Antibiotics Can Cause Permanent Nerve Damage

Newsy (Mar. 27, 2015) — A popular class of antibiotic can leave patients in severe pain and even result in permanent nerve damage. Video provided by Newsy
Powered by NewsLook.com
WH Plan to Fight Antibiotic-Resistant Germs

WH Plan to Fight Antibiotic-Resistant Germs

AP (Mar. 27, 2015) — The White House on Friday announced a five-year plan to fight the threat posed by antibiotic-resistant bacteria amid fears that once-treatable germs could become deadly. (March 27) Video provided by AP
Powered by NewsLook.com
House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) — In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins