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DNA detectives find genetic markers for lung cancers most likely to recur

Researchers at the Johns Hopkins Kimmel Cancer Center have uncovered clearly recognizable genetic alterations in tumors and tissue removed from patients with early-stage lung cancers that look like good predictors of which of these cancers are more likely to recur.

13 Mar 2008

Caspase-12: MUHC researcher finds new defense mechanism against intestinal inflammation

The body's first line of defence against pathogenic bacteria that we ingest may not be the immune system but rather the cells that line the intestine.

13 Mar 2008

Nuclear protein SATB1 triggers aggressive breast cancer

SATB1 is a nuclear protein well known for its crucial role in regulating gene expression during the differentiation and activation of T cells, making it a key player in the immune system.

13 Mar 2008

Researchers may have found test for depression

Researchers from the University of Illinois at Chicago College of Medicine have discovered that a change in the location of a protein in the brain could serve as a biomarker for depression, allowing a simple, rapid, laboratory test to identify patients with depression and to determine whether a particular antidepressant therapy will provide a successful response.

12 Mar 2008

Thermo Fisher Scientific creates breakthrough gene-silencing tool

Thermo Fisher Scientific Inc. has developed a breakthrough gene-silencing tool that greatly simplifies RNA- interference (RNAi) technology and eliminates barriers associated with previous cellular delivery methods.

From Thermo Fisher Scientific Inc. 12 Mar 2008

Specialized natural killer cells in human tonsils help protect against Epstein Barr virus

Tonsils are a source of sore throats and an excuse for ice cream. But they also provide an important protective service, their immune-cell-rich tissue acting as the body's first defense against the germs about to be swallowed or inhaled.

12 Mar 2008

Short-term stress impairs brain-cell communication

Short-term stress lasting as little as a few hours can impair brain-cell communication in areas associated with learning and memory, University of California, Irvine researchers have found.

12 Mar 2008

Home test kit confirms men's post-vasectomy sterility

Technology developed at the University of Virginia could soon have a dramatic impact on male contraception practices throughout the U.S. Earlier this year, the U.S. Food and Drug Administration approved SpermCheck Vasectomy, a home test that confirms men's post-vasectomy sterility and is based on discoveries made at U.Va.

12 Mar 2008

New discovery could change future diagnosis and therapy of depression

12 Mar 2008

New behavioral risk factors for head and neck cancers

Researchers at the Johns Hopkins Kimmel Cancer Center have teased out two distinct sets of risk factors for head and neck cancers, suggesting that there are two completely different kinds of the disease.

12 Mar 2008

Post brain injury: New nerve cells originate from neural stem cells

Most cells in the human brain are not nerve cells, but supporting cells (glial cells).

12 Mar 2008

Turning off rogue macrophages

University of Pennsylvania scientists studying macrophages, the biological cells that spring from white blood cells to eat and destroy foreign or dying cells, have discovered how these "policemen" differentiate between friend and foe.

12 Mar 2008

Switch for programmed cell death promotes spread of glioblastoma

Malignant tumors have usually lost their ability to destroy themselves by programmed cell death, or apoptosis.

12 Mar 2008

COX-2 expression is marker for cancer development in some benign breast biopsies

It's a good news, bad news situation. Some women who have a breast biopsy are told that while they don't have cancer, they do have atypical hyperplasia -- cells that aren't quite normal and might become cancerous someday.

12 Mar 2008

Combined therapeutic approach of stenting and photodynamic therapy improves survival in late stage liver cancer patients

A combined therapeutic approach of stenting and photodynamic therapy may improve survival rates for patients suffering from advanced liver bile duct cancer, according to a study published this month in Clinical Gastroenterology and Hepatology , the official journal of the American Gastroenterological Association (AGA) Institute.

12 Mar 2008

New diagnostic tool detects and monitors bladder cancer

Medical University of South Carolina (MUSC) Foundation for Research and Development announced a promising new diagnostic tool to detect and monitor bladder cancer.

12 Mar 2008

Scientists identify key protein in cell's 'self-eating' function

Molecular biologists at the University of California, San Diego have found one piece of the complex puzzle of autophagy, the process of "self-eating" performed by all eukaryotic cells - cells with a nucleus - to keep themselves healthy.

12 Mar 2008

Simple blood test could show whether an antidepressant is working

Researchers in the United States have discovered that a single protein in the brain changes its location within a cell membrane when an antidepressant is working.

11 Mar 2008

Structure reveals how cells 'sugar-coat' proteins - process essential to many proteins' functions can lead to disease when gone awry

Biologists at the U.S. Department of Energy's Brookhaven National Laboratory, Stony Brook University, and the University of Wurzburg, Germany, have deciphered the structure of a large protein complex responsible for adding sugar molecules to newly formed proteins - a process essential to many proteins' functions.

11 Mar 2008

Novel brain cancer drug HhAntag for children may damage bones

A novel drug that fully eliminated brain tumors from mice in a dramatic 2004 study has shown a darker side - causing permanent bone damage in younger mice.

11 Mar 2008