A Johns Hopkins Children’s Center study in mice may help explain why women are more prone than men to a form of liver damage by implicating the female sex hormone estrogen in the development of autoimmune hepatitis.
In addition to the traditionally acknowledged risk factors for breast cancer (age, reproductive history, genetic profile, obesity, alcohol intake, smoking, etc.), scientists are increasingly coming to understand that many chemicals commonly found in products we use daily may also be contributing to the very high incidence of breast cancer.
Excess estrogen levels during pregnancy can disable, in their daughters, a powerful breast cancer tumor suppressor gene, say researchers at Georgetown Lombardi Comprehensive Cancer Center. They found the DNA repair gene BRCA1 to be silenced in one year-old girls exposed to a high hormonal fetal environment.
Hormones and/or hormone-mimicking chemicals are omnipresent environmental contaminants. Already found in places as varied as our teeth (dental sealant) to our paper products (receipts, money), our meat to our canned foods, new research now indicates that even fresh, whole vegetables and fruits are no longer immune to this growing biological and chemical threat.
An editorial published April 25 in the journal Environmental Health Perspectives calls for increased research to identify possible environmental causes of autism and other neurodevelopmental disorders in America’s children and presents a list of ten target chemicals including which are considered highly likely to contribute to these conditions.
A recent study has shown that a potent sunscreen ingredient, oxybenzone, may be a cause of endometriosis. This condition occurs when uterine tissue grows in abnormal sites in the abdomen and causes severe pain.