Discovery points to one possible path to novel drug development for cancer, AIDS, some inflammation

Using a new approach, Mayo Clinic researchers have successfully “taught” an RNA molecule inside a living cell to work as a decoy to divert the actions of the protein NF-kappaB, which scientists believe promotes disease development. The findings are published in the current issue of Proceedings of the National Academy of Sciences.

Although it also plays helpful roles in the bod

Teeming with heat-loving microbes, samples of fluid drawn from the crustal rocks that make up most of the Earth’s seafloor are providing the best evidence yet to support the controversial assertion that life is widespread within oceanic crust, according to H. Paul Johnson, a University of Washington oceanographer. Johnson is lead author of a report being published March 25 in the American Geophysical Union’s publication Eos about a National Science Foundation-funded expedition he led last s

Women smile more than men, but differences disappear when they are in the same role, Yale researcher finds

Women do smile more than men, but when occupying similar work and social roles, the gender differences in the rate of smiling disappear, a Yale researcher has found.

Also, there are large differences in the degree to which men smile less than women depending on a person’s culture, ethnicity, age, or when people think they are being observed, according to the study fund

New study may have implications for millions in search of the elusive “good night’s sleep”

In movies and novels alike, much is made of the stage of sleep known as rapid eye movement (REM), since this is the phase of slumber in which dreams (good, bad, exotic) occur. Among the medical community, there is an increased appreciation for what is called “slow-wave” sleep, (also known as deep or delta-wave sleep), because this fourth stage of sleep can be difficult to attain. If one is aw

The phrase, “the right hand doesn’t know what the left hand is doing,” has its roots in a passage of the Bible (Matthew 6:3). If there is truth to this old saying, the reasons may have as much to do with the way the brain obtains information from the arms as it does from the observations of ancient scribes.

Background

Most individuals are either left- or right-handed. How the skills they have learned from the dominant arm (or hand) are transferred to the non-dominant arm ha

Johns Hopkins scientists have discovered that primitive human embryonic stem (ES) cells, temperamental in the lab, can be grown with the help of special cells from bone marrow, offering an easily obtained and well-studied source of human cells to nurture the human ES cells as they divide.

First announced in 1998, human embryonic stem cells are usually grown in the lab on a “feeder layer” of mouse cells. Feeder cells send as yet unknown signals to the primitive human ES cells, preventing the