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One secret to how tuberculosis resists the host immune system

Mycobacterium tuberculosis is arguably the world's most successful infectious agent because it knows how to avoid elimination by slowing its own growth to a crawl. Now, a report in the July 10 issue of the journal Cell, a Cell Press publication, offers new insight into the bugs' talent for meager living.

9 Jul 2009

Discovery of key gene for bone development that when mutated lead to dwarfism

Scientists have just discovered the gene behind Recessive Omodysplasia, a rare skeletal disease characterised by short-limbed dwarfism and craniofacial anomalies.

9 Jul 2009

Research may hold key to maintaining embryonic stem cells in lab

In a new study that could transform embryonic stem cell (ES cell) research, scientists at UT Southwestern Medical Center have discovered why mouse ES cells can be easily grown in a laboratory while other mammalian ES cells are difficult, if not impossible, to maintain.

9 Jul 2009

Family Research Council President says NIH stem cell guidelines ethically irresponsible

Today, Family Research Council President Tony Perkins responded to the National Institutes of Health (NIH) guidelines implementing President Obama's executive order for federal funding of human embryonic stem cell research (ESCR). President Obama's order and the NIH guidelines remove life-protecting limits on federal funding of embryonic stem cell research.

7 Jul 2009

Obama administration releases final rules on stem cell research

The Obama administration released final regulations governing stem cell research on Monday. The New York Times reports that the rules will allow many older stem cell lines to be eligible for federally financed research.

7 Jul 2009

Identification of cholesterol regulating genes by targeted RNAi-screening

Scientists at the European Molecular Biology Laboratory (EMBL) and the University of Heidelberg, Germany, have come a step closer to understanding how cholesterol levels are regulated. In a study published today in the journal Cell Metabolism, the researchers identified 20 genes that are involved in this process. Besides giving scientists a better idea of where to look to uncover the mechanisms that ensure cholesterol balance is maintained, the discovery could lead to new treatments for cholesterol-related diseases.

7 Jul 2009

Scientists step closer to first artificial nerve cell

Scientists at the Swedish medical university Karolinska Institutet and Linköping University are well on the way to creating the first artificial nerve cell that can communicate specifically with nerve cells in the body using neurotransmitters. The technology has been published in an article in Nature Materials.

7 Jul 2009

New strategies to improve treatment and prevent heart failure in children

Structural cardiovascular abnormalities present at birth are the leading cause of heart failure in children. Nearly half a million children in the United States have structural heart problems ranging in severity from relatively simple issues, such as small holes between chambers of the heart, to very severe malformations, including complete absence of one or more chambers or valves.

7 Jul 2009

Shire files treatment protocol for Velaglucerase Alfa for Gaucher’s disease

Shire plc has announced that, at the request of the FDA, in view of a potential restriction on the availability of the current approved and marketed treatment for Gaucher’s disease patients, it has filed a treatment protocol for velaglucerase alfa, its enzyme replacement therapy in development for the treatment of Gaucher’s disease.

7 Jul 2009

Specialized glycans act as tumor suppressors

Scientists at Burnham Institute for Medical Research (Burnham) have discovered that specialized complex sugar molecules (glycans) that anchor cells into place act as tumor suppressors in breast and prostate cancers.

6 Jul 2009

Future of organ transplantation - microscopic beads that create "designer " immune cells

The future of organ transplantation could include microscopic beads that create "designer" immune cells to help patients tolerate their new organ, Medical College of Georgia researchers say.

6 Jul 2009

Discovery of genetic key to breast cancer's ability to survive and spread

New research led by investigators at Memorial Sloan-Kettering Cancer Center (MSKCC) sheds light on a genetic function that gives breast cancer cells the ability to survive and spread to the bone years after treatment has been administered.

6 Jul 2009

A new prostate cancer "homing device" for drug delivery

A new prostate cancer "homing device" could improve detection and allow for the first targeted treatment of the disease. A team of Purdue University researchers has synthesized a molecule that finds and penetrates prostate cancer cells and has created imaging agents and therapeutic drugs that can link to the molecule and be carried with it as cargo.

6 Jul 2009

Potential new target for acute myeloid leukemia

Dr. John Dick, Senior Scientist at the Ontario Cancer Institute, the research arm of Princess Margaret Hospital, co-led a multinational team that has developed the first leukemia therapy that targets a protein, CD123, on the surface of cancer stem cells that drive acute myeloid leukemia (AML), which is an aggressive disease with a poor outcome.

6 Jul 2009

FDA approves Alimta (pemetrexed) for advanced lung cancer

The U.S. Food and Drug Administration has approved Alimta (pemetrexed), the first drug available for maintenance therapy of advanced or metastatic lung cancer.

6 Jul 2009

MicroRNAs hold promise for treating diseases in blood vessels

A newly discovered mechanism controls whether muscle cells in blood vessels hasten the development of both atherosclerosis and Alzheimer's disease, according to an article published online today in the journal Nature.

5 Jul 2009

Bioethicists lead call for public debates on future uses of stem cells

More than 40 scientists, bioethicists, lawyers and science journal editors are calling on their colleagues, policy makers and the public to begin developing guidelines for the research and reproductive use of stem cell-derived eggs and sperm, even though such use may be a decade or more away.

2 Jul 2009

New peripherally inserted central catheter mimics nature

A novel coating being used on a new peripherally inserted central catheter (PICC) from r4 Vascular mimics the cell layer found on natural tissue surfaces.

30 Jun 2009

Newly discovered gene regulates balance of 'bad' cholesterol

In an article in Science, Noam Zelcer from the LACDR describes a previously unknown mechanism for regulating the amount of LDL cholesterol. This offers opportunities for supplementing and improving the effect of so-called statins: medicines that remove 'bad' cholesterol from the bloodstream.

30 Jun 2009

Lifespan of HIV-infected cells might be shorter than previously anticipated

Dutch-sponsored researcher Christian Althaus has used mathematical models to demonstrate that cells infected with HIV could live even shorter than was thought until now. If infected cells have a shorter lifespan then this increases the chances of the virus escaping the attention of the immune system.

30 Jun 2009