used only on mice and cats… *wink*wink*…….how long before this is surreptitiously used on the 6 billion “useless eaters” on the planet ???
Biologist Bruce Hay of the California Institute of Technology in Pasadena and colleagues took a different approach to blocking GnRH. Rather than rely on the immune systems to create antibodies, he and his colleagues engineered a piece of DNA that—when packaged inside inactive virus shells and injected — will turn any animal’s muscle cells into anti-GnRH antibody factories. Because muscle cells are some of the longest lasting in the body, they continue to churn out the antibodies for 10 or more years. Both male and females with high enough levels of the antibodies were rendered completely infertile when Hay’s team allowed them to mate 2 months later, the team reports online today in Current Biology.
“That 2-month delay is because of how long it takes the muscle to start producing enough antibody,” Hay explains. “Going forward, one goal is certainly to try other systems that wouldn’t have that time lag.”
“Lifelong contraception in a safe and effective way”