Study: BPA research might have been bias

Apr 17, 2007

A U.S. scientific journal says bias might have resulted in inconsistent study results concerning the danger of a chemical found in many products.

Bisphenol A, or BPA, is a weak synthetic estrogen used in a variety of consumer products including baby bottles and food and beverage containers. Some animal studies have linked BPA with such adverse health effects as obesity and cancer and there's concern it might cause similar adverse effects in humans.

Among government and industry experiments on lab animals and tissues, 153 found adverse effects and 14 did not. The majority of those reporting no harm were funded by chemical corporations, the journal Chemical & Engineering News reported.

Now an editorial in the journal's April 16 issue by Senior Editor Bette Hileman highlights a number of potential sources of bias behind the inconsistent study outcomes, including the use of strains of rats that are insensitive to estrogen and choosing batches of animal feed that vary widely in their estrogenic activities.

The American Chemical Society journal said only an unbiased panel with appropriate expertise can resolve the apparently conflicting results of the BPA-related health studies.

Copyright 2007 by United Press International

Explore further: Best of Last Week - Zero friction quantum engine, twisted radio beams and Ebola outbreak update

add to favorites email to friend print save as pdf

Related Stories

Molecular modelling to help create better, safer drugs

May 24, 2013

(Phys.org) —How our bodies break down the common drugs ibuprofen, diclofenac and warfarin is the subject of a new study from the University of Bristol, published in the Journal of the American Chemical So ...

Recommended for you

Ig Nobel winner: Using pork to stop nosebleeds

Sep 19, 2014

There's some truth to the effectiveness of folk remedies and old wives' tales when it comes to serious medical issues, according to findings by a team from Detroit Medical Center.

History books spark latest Texas classroom battle

Sep 16, 2014

As Texas mulls new history textbooks for its 5-plus million public school students, some academics are decrying lessons they say exaggerate the influence of Christian values on America's Founding Fathers.

Flatow, 'Science Friday' settle claims over grant

Sep 16, 2014

Federal prosecutors say radio host Ira Flatow and his "Science Friday" show that airs on many National Public Radio stations have settled civil claims that they misused money from a nearly $1 million federal ...

User comments : 0