Featured Research

from universities, journals, and other organizations

Breastfeeding: Chemical Concentrations Do Not Decrease During Lactation

Date:
July 16, 2009
Source:
Environmental Health Perspectives (NIEHS)
Summary:
A new study suggests that lipid-adjusted concentrations of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and furans and organochlorine pesticides in women's blood serum and milk do not decrease during lactation as previously thought. This new insight should improve researchers' ability to assess infant exposures to environmental chemicals via breastfeeding.

A new study suggests that lipid-adjusted concentrations of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and furans and organochlorine pesticides in women’s blood serum and milk do not decrease during lactation as previously thought. This new insight should improve researchers’ ability to assess infant exposures to environmental chemicals via breastfeeding.

This new finding also challenges the idea that early milk should be pumped and discarded as a means of reducing infant exposure to persistent organic pollutants, which can accumulate in a mother’s fat stores over her lifetime and be mobilized during lactation.

First author Judy S. LaKind and colleagues found that partitioning of chemicals between serum and human milk was complex and related to chemical class. The authors suggest that the milk/serum ratios determined by this research be used to evaluate infant exposure if only serum data are available. They also recommend that additional studies that include a larger cohort be conducted to confirm these results.

“This is the first study to provide data based on simultaneous sampling of breast milk and blood at separate times during lactation,” wrote the authors.

Support for this research was provided in part by the Research Foundation for Health and Environmental Effects, Arlington, VA.


Story Source:

The above story is based on materials provided by Environmental Health Perspectives (NIEHS). Note: Materials may be edited for content and length.


Journal Reference:

  1. LaKind et al. Do Human Milk Concentrations of Persistent Organic Chemicals Really Decline During Lactation? Chemical Concentrations During Lactation and Milk/Serum Partitioning. Environmental Health Perspectives, 2009; DOI: 10.1289/ehp.0900876

Cite This Page:

Environmental Health Perspectives (NIEHS). "Breastfeeding: Chemical Concentrations Do Not Decrease During Lactation." ScienceDaily. ScienceDaily, 16 July 2009. <www.sciencedaily.com/releases/2009/07/090714214505.htm>.
Environmental Health Perspectives (NIEHS). (2009, July 16). Breastfeeding: Chemical Concentrations Do Not Decrease During Lactation. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2009/07/090714214505.htm
Environmental Health Perspectives (NIEHS). "Breastfeeding: Chemical Concentrations Do Not Decrease During Lactation." ScienceDaily. www.sciencedaily.com/releases/2009/07/090714214505.htm (accessed April 18, 2014).

Share This



More Health & Medicine News

Friday, April 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com
Is Apathy A Sign Of A Shrinking Brain?

Is Apathy A Sign Of A Shrinking Brain?

Newsy (Apr. 17, 2014) A recent study links apathetic feelings to a smaller brain. Researchers say the results indicate a need for apathy screening for at-risk seniors. Video provided by Newsy
Powered by NewsLook.com
Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Thousands Of Vials Of SARS Virus Go Missing

Thousands Of Vials Of SARS Virus Go Missing

Newsy (Apr. 16, 2014) A research institute in Paris somehow misplaced more than 2,000 vials of the deadly SARS virus. Video provided by Newsy
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:
from the past week

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