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How Neural Activity Spurs Blood Flow In The Brain

18:35 26-06-2008; source: www.sciencedaily.com

Neuroscientists have pinpointed exactly how neural activity boosts blood flow to the brain. The finding has important implications for our understanding of common brain imaging techniques such as fMRI, which uses blood flow in the brain as a proxy for neural activity.

New Clinical Trial For Patients With Asbestos-associated Lung Cancer

18:35 26-06-2008; source: www.sciencedaily.com

The Mesothelioma Center within the Herbert Irving Comprehensive Cancer Center at NewYork-Presbyterian Hospital and Columbia University Medical Center is now recruiting patients for a clinical research study of a new targeted radiation and chemotherapy protocol for pleural mesothelioma, a cancer of the lung's lining that is almost always caused by previous exposure to asbestos.

Faulty DNA Repair Could Be A Risk Factor For Lung Cancer In Nonsmokers

18:35 26-06-2008; source: www.sciencedaily.com

People who have never smoked but whose cells cannot efficiently repair environmental insults to DNA are at higher risk of developing lung cancer than those with effective genomic repair capability.

Scientists Discover How An Injured Embryo Can Regenerate Itself

18:35 26-06-2008; source: www.sciencedaily.com

Scientists have developed a mathematical model to describe interactions that occur within genetic networks of an embryo, answering the age-old question of how half embryos are able to maintain their tissues and organs in the correct proportions despite being smaller than a normal sized embryo. Understanding the processes that govern embryonic cell development, may lead, in the future, to scientists being able to repair injured tissues.

Effectiveness Of Contrast Agent Cytate In Detecting Prostate Cancer

18:35 26-06-2008; source: www.sciencedaily.com

Researchers have conducted time-resolved fluorescence measurement and optical imaging studies that demonstrate the efficacy of Cytate as a fluorescence marker to detect prostate cancer. Cytate, a contrast agent that conjugates to receptors on prostate cancer cells, exhibited greater fluorescence when applied to cancerous prostate tissue as opposed to normal prostate tissue.

Promising Cancer Drug Target In Prostate Tumors Identified

18:35 26-06-2008; source: www.sciencedaily.com

Scientists report they have blocked the development of prostate tumors in cancer-prone mice by knocking out a molecular unit they describe as a "powerhouse" that drives runaway cell growth. The researchers say the growth-stimulating molecule called p110beta -- part of a cellular signaling network disrupted in several common cancers -- is a promising target for novel cancer therapies designed to shut it down.