Washington, April 11 : A novel therapy for metastatic prostate cancer has shown considerable promise in early clinical trials by reducing signs of the disease in patients with drug-resistant cancer.

Of 30 men who received low doses of one the drugs in a multisite phase I/II trial designed to evaluate safety, 22 showed a sustained decline in the level of prostate specific antigen (PSA) in their blood.

Washington, Apr 11 : Researchers from UT Southwestern Medical Centre have identified a molecule that prompts damaged heart cells to repair themselves after a heart attack.

The research team led by Drs. J. Michael DiMaio and Ildiko Bock-Marquette has discovered a molecule called, Thymosin beta-4 (TB4), which is expressed by embryos during the heart's development and encourages migration of heart cells.

They showed that introducing TB4 systemically after a heart attack encourages new growth and repair of heart cells as early as 24 hours after systemic injection.

In the mouse study, researchers found that TB4 initiates capillary tube formation of adult coronary endothelial cells in tissue culture.

The US space agency NASA (National Aeronautics and Space Administration) has stated that it has noted aerosols affecting climate by reflecting or absorbing the radiation of Sun, in the atmosphere. In its recent study, NASA has articulated that Arctic has been warming since 1976, due to the increase of aerosols in Atmosphere.

The NASA study has warned that the growing amount of aerosols could have damaging effects on climate, particularly if the amount of aerosols surpasses maximum-allowed limits. The sources of aerosols can be natural as well as human.

Washington, Apr 11: US President Barack Obama is such a huge fan of TV show Entourage that he reschedules his commitments in order not to miss an episode.

The hit HBO series follows the life of an aspiring actor played by Jeremy Piven.

“We would talk about Entourage all the time. I remember one time I emailed him (Obama) because the call was scheduled for the last 15 minutes of Entourage and I said, ‘Just be late and we can just watch Entourage and still get on and do the call’”, Contactmusic quoted White House press secretary Robert Gibbs as telling politico. com.

Washington, April 11 : A team of astronomers has found a sample of massive galaxies with properties that suggest they may have formed relatively recently, a discovery that poses challenge to galaxy formation theories.

This runs counter to the widely-held belief that massive, luminous galaxies (like our own Milky Way Galaxy) began their formation and evolution shortly after the Big Bang, some 13 billion years ago.

Further research into the nature of these objects could open new windows into the study of the origin and early evolution of galaxies.

As part of the research, the team of astronomers, led by IU (Indiana University) astronomer John Salzer, uncovers the unique properties of 15 galaxies.

Washington, April 11 : Johns Hopkins researchers say that several factors may explain why a stay in an intensive care unit (ICU) leads many patients to report depression after they go home, including a high level of organ failure and being given relatively high doses of a benzodiazepine sedative.

"The hope is that as we learn more about the effect of variations in ICU care, we''ll be able to predict which patients are most susceptible to depression, prevent some depression by changing ICU practices, and make sure patients receive adequate mental health monitoring after discharge," says Dr. O. Joseph Bienvenu, an associate professor in the Department of Psychiatry at the Johns Hopkins University School of Medicine.