Scientists have found evidence that tamoxifen, the drug widely used to treat breast cancer, may lose its effectiveness over time and begin to behave like the hormone it is supposed to block. Tamoxifen works by blocking the action of estrogen and keeping it from attaching to a receptor on the surface of the cell.
Researchers at Duke University Medical Center have found that after a period of two to five years, the "anti-estrogen effect of tamoxifen fades, often allowing estorgen-sensitive cancers to start growing again." The primary author of the study, John D. Norris, explained that "over time, the drug causes the estrogen receptor on cells to change and form a pocket-like structure that allows other proteins to bind there. The action of these proteins somehow changed the cellís reaction to tamoxifen. The drug converts from an anti-estrogen effect to a pro-estrogen effect."
However, the scientists have discovered that the action can be reversed with the use of peptides. They also believe that this will allow them the opportunity to find a new drug anti-estrogen drug that does not have the same effects as tamoxifen
Media Resources: Nando Times and Reuters - July 29, 1999
8/28/2015 Alaska Court Protects Abortion Access for Low-Income Women - The Alaska Superior Court struck down a state law yesterday that would have severely limited abortion access for low-income women in Alaska.
The state's Superior Court also struck down a Department of Health and Social Services regulation that placed narrow specifications on Medicaid coverage for abortions, requiring that Medicaid-funded abortions be determined by a physician to be "medically necessary." Last year, the Center for Reproductive Rights, the American Civil Liberties Union, and Planned Parenthood sued on behalf of the Planned Parenthood of the Great Northwest, claiming that the narrow definition of "medically necessary" arbitrarily established conditions designed to restrict the ability of low-income women to access abortion services.
The law was temporarily blocked last July by an Alaskan state court judge.
Superior Court Judge John Suddock ordered yesterday that the state be blocked from implementing this regulation, ruling that it placed an undue burden on low-income women seeking abortion services in Alaska.
"By providing health care to all poor Alaskans except women who need abortions, the challenged regulation violates the state constitutional guarantee of 'equal rights, opportunities, and protection under the law'," the ruling read.
"We applaud the superior court for striing down these cruel restrictions on women's health and rights that violate the Alaska Constitution," said Chris Charbonneau, CEO of Planned Parenthood of the Great Northwest and the Hawaiian Islands. . . .
8/26/2015 Saudi Women Prepare to Vote for the First Time - The fight for gender equality is making slow but notable progress in Saudi Arabia, where women will be allowed to vote for the first time in upcoming December elections.
This shift in Saudi law came in 2011, when a royal decree announced that women would be allowed to vote and run in local elections beginning in December of 2015. . . .