Health

Prevention of Endocrine Disruptors is Critical, NAU Professor Affirms

The debate regarding the safety of endocrine disruptors has flared up over the past few weeks as the scientific community continues to clash over the issue. While researchers with industry interests argue that endocrine disruptors are not a case for concern, others see the issue in an entirely different light.

Debate Over Regulation of Endocrine Disruptors Builds

The past few weeks have seen growing intensity in the scientific community as researchers continue to add their voices to the battle over the regulation of endocrine disrupting chemicals. An article in Scientific American this week calls attention to the academic barbs being traded via scientific journals. Daniel Cressey writes that the fighting recently resurfaced over a leaked policy on endocrine disruptors from the European Commission instigated debate. According to Cressey:

China to Conduct Study on Endocrine Disruptors Roles in Female Infertility

The South China Morning Post reported today that a new study is being undertaken by scientists in China, who are concerned with growing rates of female infertility and want to determine the influence pollution has on these figures. The study is a joint effort involving Nanjing Medical University, Zhejiang University, the Chinese Academy of Sciences, and Shanghai Jiao Tong University.

Study Finds BPA in All Umbilical Cord Samples Tested

Researchers at a San Francisco clinic were shocked to find that all of the umbilical cord samples gathered from pregnant women undergoing an elective procedure were contaminated with bisphenol A, a well known endocrine disruptor. The study was headed by Dr. Patricia Hunt, the same researcher who recently conducted a study examining the effects of BPA on maturing mouse eggs. Hunt's study examined umbilical cord samples from 85 women in the second trimester of their pregnancy, and the results showed a “universal” presence of bisphenol A.

Study Finds Data Gaps in FDA's Toxicity Testing

A new study published two days ago in the journal Reproductive Toxicology has found that the United States Food and Drug Administration's methods of determining chemical safety contains enormous data gaps. The study was conducted by researchers from the Pew Charitable Trusts and the Environmental Management Institute, Thomas G. Neltner, Heather M. Alger, Jack E. Leonard, and Maricel V.

Harvard Study Finds BPA May Cause Human Infertility

A study from Harvard University has determined that bisphenol A may be causing higher instances of birth defects and infertility. According to an article published by Stephen Reinberg of US News, researchers from Harvard have concluded from their study that bisphenol A's endocrine disrupting properties may play a role in about 20 percent of documented cases of unexplained infertility. Reinberg writes that the study involved exposing 352 eggs from 121 consenting patients to different levels of bisphenol A.

Modified Forms of Bisphenol A Alter Hormone Signaling

By now, the health concerns bisphenol A creates have become common knowledge as scientific reports offering evidence of the chemical's hormone disrupting nature become more and more prolific. Known for its ability to interfere with hormones in the human body, many companies which once used bisphenol A as an ingredient in can linings, resins, plastic bottles, and even cash register receipts, are slowly beginning to phase out the chemical in search of safer alternatives.

Researchers Develop Substitute for BPA-Based Epoxy

Researchers at the University of Massachusetts Lowell have developed an epoxy resin which is so far proving to be a promising substitute for its previously popular, bisphenol A lined counterpart. The new resin, according to head researcher Daniel Schmidt, is thought to be a much safer material for use in adhesives and other products which include epoxy resins. The chemical is known as bis(epoxide) of 2,2,4,4-tetramethyl-1,3-cyclobutanediol, or more simply, CBDO. Schmidt believes that the results the research team has produced so far have been promising.

Toxic Chemicals Hit Low-Income Families Hardest

Getting access to good nutrition is difficult in America, in part due to the challenges posed by a harsh economy, but also because of the presence of "food deserts" which limit consumers' ability to purchase fresh fruits and vegetables. According to an article written by Eric Holt Gimenez in the Healthy Living section of the Huffington Post, it is precisely these families, which total over 13.5 million, which are at the greatest risk of exposure to the chemical bisphenol A.

Early Exposure to BPA May Damage Tooth Enamel

New research has found that the presence of bisphenol A during the developmental phases of young children whose teeth are still forming may cause teeth to be hypersensitive to pain and susceptible to cavities. According to a study conducted by Ariane Berdal of the Université Paris-Diderot and Sylvie Babajko, Research Director at Inserm Unit 872 "Centre des Cordeliers", rats exposed to bisphenol A developed brittle tooth enamel, mirroring a pathology known as "molar incisor hypomineralisation".

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