logo
g Text Version
Beauty & Self
Books & Music
Career
Computers
Education
Family
Food & Wine
Health & Fitness
Hobbies & Crafts
Home & Garden
Money
News & Politics
Relationships
Religion & Spirituality
Sports
Travel & Culture
TV & Movies

dailyclick
Bored? Games!
Nutrition
Postcards
Take a Quiz
Rate My Photo

new
Action Movies
Bible Basics
Houseplants
Romance Movies
Creativity
Family Travel
Southwest USA


dailyclick
All times in EST

Full Schedule
g
g Infertility Site

BellaOnline's Infertility Editor

g

PCB Exposure Can Harm IVF Success


Taking steps to reducing your exposure to PCBs, (polychlorinated biphenyls) could confer added protection to your IVF cycle, increasing your chances of conceiving. A number of different studies show that the higher your exposure levels to these environmental contaminants, the greater your risk of IVF failure.

Although the production of PCBs has been banned in the US since 1977, PCBs take a long time to break down and are still recycling through the environment. Your biggest source of exposure is likely to be through your diet, the fish in your diet to be precise.

Fish are known to bioaccumulate PCBs especially wild caught bottom-feeding fish which ingest PCBs from the sludge at the bottom of lakes and rivers. This problem is magnified in wild fish from waters that already have a high PCB load such as the great lakes.

However, the real risk lies in consumption of farmed salmon. Research has shown that farmed salmon contains sixteen times more PCBs than wild salmon and contains more PCBs than other animal foods. According to the Environmental Working Group (ewg.org) "a serving of farmed salmon has up to 40 times more PCBs than other fish."

Reducing fish consumption and choosing to eat only wild fish from the cleanest waters can keep your risk level low.

The new research on PCBs and IVF success was presented at the 2010 American Society of Reproductive Medicine conference (ASRM) by Shruthi Mahalingaiah MD from Boston's Brigham and Women's Hospital. The studies highlight how increased exposure to polychlorinated biphenyls (PCBs) can cause higher levels of PCBs in your blood which is closely tied to implantation failure in IVF. Higher exposure levels to PCBs were also associated with reduced live birth rates. Blood levels of a now banned fungicide hexachlorobenzene were also tied to a higher risk of IVF failure.

These new findings are soon to be published and worth taking note if you are trying to conceive. Being careful with your fish consumption could give your chances of IVF success a welcome boost.

Mahalingaiah conducted two further studies to further tease out the connections between; PCBs, hexachlorabenzene, and the pesticides DDT and DDE on IVF outcome. The studies examined data from 765 Boston area women who pursued 827 cycles of IVF, or IVF with ICSI between 1994 and 2003.

The results of this extensive study confirmed that women with the highest levels of PCBs had a far greater risk of implantation failure, and a lower live birth rate than women with low exposure levels.

The mechanism through which PCBs and fungicides reduce IVF success is as yet unknown but PCBs are known to permeate the whole body and and are present within the micro-environment of the ovarian follicles where they may act as hormonal disruptors.

Would you like articles like this delivered to your email weekly/ sign up for the BellaOnline newsletter, it's free and you can unsubscribe anytime you like.

References:
Mahalingaiah S, et al "Association of polychlorinated biphenyls (PCBs) with adverse reproductive outcomes during in vitro fertilization (IVF)" ASRM 2010; Abstract O-246.

Mahalingaiah S, et al "Association of persistent organic pollutants hexachlorobenzene (HCB), dichlorodiphenyltrichloroethane (DDT), and dichlorodiphenyldichloroethane (DDE) with in vitro fertilization (IVF) outcomes" ASRM 2010; Abstract O-247.

astdr.cdc.gov Agency for toxic substances and disease registry

ewg.org/reports/farmedpcbs

Medpage Today accessed Dec 6 2010

Add PCB+Exposure+Can+Harm+IVF+Success to Twitter Add PCB+Exposure+Can+Harm+IVF+Success to Facebook Add PCB+Exposure+Can+Harm+IVF+Success to MySpace Add PCB+Exposure+Can+Harm+IVF+Success to Del.icio.us Digg PCB+Exposure+Can+Harm+IVF+Success Add PCB+Exposure+Can+Harm+IVF+Success to Yahoo My Web Add PCB+Exposure+Can+Harm+IVF+Success to Google Bookmarks Add PCB+Exposure+Can+Harm+IVF+Success to Stumbleupon Add PCB+Exposure+Can+Harm+IVF+Success to Reddit




RSS | Related Articles | Editor's Picks Articles | Top Ten Articles | Previous Features | Site Map


For FREE email updates, subscribe to the Infertility Newsletter


Past Issues


print
Printer Friendly
bookmark
Bookmark
tell friend
Tell a Friend
forum
Forum
email
Email Editor


Content copyright © 2014 by Hannah Calef. All rights reserved.
This content was written by Hannah Calef. If you wish to use this content in any manner, you need written permission. Contact Hannah Calef for details.

g


g features
Running/Exercising Stops Ovulation In 50% Of Women

Myo-Inositol During IVF And Non-PCOS Women

PCOS? You May Have Poor Uterine Blood Flow

Archives | Site Map

forum
Forum
email
Contact

Past Issues
memberscenter


vote
Poetry
Daily
Weekly
Monthly
Less than Monthly



BellaOnline on Facebook
g


| About BellaOnline | Privacy Policy | Advertising | Become an Editor |
Website copyright © 2014 Minerva WebWorks LLC. All rights reserved.


BellaOnline Editor