A comprehensive study found a high prevalence of pelvic floor disorders in the general population, affecting up to 50% of older women. The research highlights the need for increased medical attention and awareness about these often-stigmatized conditions.
Biomolecular motors powered by ATP and spinning nickel propellers have been successfully built and tested, enabling the creation of ultrasmall robotic devices. The technology holds promise for developing nanonurses and smart pharmacies that can detect chemical signals from body cells and precisely dispense drugs.
Researchers have identified a new fast serotonin receptor in the roundworm Caenorhabditis elegans that can inhibit neuronal activity. This discovery raises hopes for developing new treatments for disorders caused by serotonin imbalance, such as mood disorders and obesity.
In a study on arctic ground squirrels, researchers found that females severely reduced reproduction and most died over winter when populations reached maximum capacity. This regulation helps control population growth and maintain survival rates.
Researchers have successfully cloned a female adult cell and reset its developmental clock, resetting X-inactivation. The study provides the first molecular evidence for the egg's ability to reprogram an adult cell back to its embryonic state.
Scientists at the University of Michigan have discovered that Yersinia pestis, the bacterium that causes bubonic plague, uses an ancient agent to sever vital cell signaling pathways. This mechanism is shared by both plant and animal bacteria, including those that cause black rot and other diseases.