Researchers from the Whitehead Institute for Biomedical Research have successfully cloned mouse embryos from mature B and T cell nuclei, demonstrating that fully differentiated adult cells can form clones. However, the process is extremely inefficient, and it is more likely that elusive adult stem cells are responsible for cloning.
A recent study found that depression treatments are less effective among certain populations, including elderly women and individuals with low education levels. These populations tend to have higher rates of non-response to treatment, suggesting the need for more intensive specialty mental health care.
A study of 78 older adults found that chronic, sub-clinical mild depression can suppress immune systems, leading to poorer responses to infections and diseases. The findings suggest that early detection and treatment of even mild depression may be crucial for better health in older adults.