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High levels of a blood protein called mannose-binding lectin associated with lower risk of heart attack

High levels of a blood protein called mannose-binding lectin (MBL) are associated with lower risk of heart attack, particularly among diabetics, report Saevardottir and colleagues.

28 Dec 2004

Significant advance in understanding the human genome

An Oregon Health & Science University-led development of a technique for identifying control elements that drive the expression of genes in brain cells could unleash the disease-fighting potential of the much-hailed human genome.

28 Dec 2004

New technique for tracking gene regulators

Finding out where gene-regulator proteins bind to DNA and identifying the genes they regulate just got a step easier thanks to a new technique developed by scientists at the U.S. Department of Energy’s Brookhaven National Laboratory.

28 Dec 2004

Is open source the answer for finding cures for tropical diseases?

Only about 1% of newly developed drugs are for tropical diseases, such as African sleeping sickness and dengue fever. While patent incentives have driven commercial pharmaceutical companies to make Western health care the envy of the world, the commercial model only works if companies can sell enough patented products to cover their R&D costs and produce profits for shareholders.

28 Dec 2004

Indian curry may be the next Alzheimer's weapon

A dietary staple of India, where Alzheimer's disease rates are reportedly among the world's lowest, holds potential as a weapon in the fight against the disease.

28 Dec 2004

Course of injections in childhood might help protect people from heart disease later in life

A course of injections in childhood might help protect people from heart disease later in life. And for those whose arteries are already clogged up, a dose of antibodies could provide immediate benefits. That's the enticing vision raised by animal studies.

26 Dec 2004

New gel promotes healing by gluing bone pieces together

A new material that fuses biological and synthetic substances at the molecular level speeds bone and cartilage repair. Its creators at the Technion-Israel Institute of Technology say laboratory studies have shown the new gel promotes healing by gluing bone pieces together and stimulating tissue development.

26 Dec 2004

Discovery shows how embryonic stem cells perform 'quality control' inspections

Biologists at the University of California, San Diego have found a fundamental mechanism used by embryonic stem cells to assure that genetically damaged stem cells do not divide and pass along the damage to daughter stem cells.

26 Dec 2004

How to uncover the secrets of disease-relevant proteins

Cancer researchers have developed a guide for piecing together the jigsaw puzzle of genome research - to elucidate cellular mechanisms that lead to diseases such as cancer is a big challenge of biomedicine.

23 Dec 2004

Shape of a protein on the surface of pneumonia bacteria helps germs invade the human bloodstream

Scientists at St. Jude Children's Research Hospital have discovered that the shape of a protein on the surface of pneumonia bacteria helps these germs invade the human bloodstream.

23 Dec 2004

Needling chromosomes yields insights into cell division

By impaling individual chromosomes with glass needles one thousandth the diameter of a human hair, a Duke University graduate student has tested their "stickiness" to one another during cell division. Her uncanny surgical skills have added a piece to the large and intricate puzzle of how one cell divides into two -- a process fundamental to all organisms.

23 Dec 2004

Somatic hypermutation (SHM) should prove to be extremely useful in directed protein evolution

Fascinated by the efficient way the human immune system generates a rapid response to create a near-infinite variety of antibodies, researchers have "hijacked" that machinery and used it to evolve a new type of fluorescent protein.

23 Dec 2004

First assessment tool to evaluate Quebec Platelet Disorder (QPD)

Researchers at McMaster University have developed the first assessment tool of its kind for evaluating risks faced by Canadians suffering from a rare and often fatal bleeding disorder.

22 Dec 2004

Fluorescent colors used to separate cells visually

The latest holiday gifts being offered to the scientific community this season by scientists in the laboratory of Howard Hughes Medical Institute investigator Roger Y. Tsien come in a dazzling variety of hues -- cherry, strawberry, tangerine, tomato, orange, banana and honeydew. The color spectrum would make Pantone proud.

22 Dec 2004

Jumping genes help explain immune system's remarkable ability

A team led by Johns Hopkins scientists has found the first clear evidence that the process behind the human immune system's remarkable ability to recognize and respond to a million different proteins might have originated from a family of genes whose only apparent function is to jump around in genetic material.

22 Dec 2004

Turning off cell suicide switch fails to stop prion damage

Researchers knew that prions, the misfolded proteins that cause mad cow disease and other brain disorders, were killing off a class of important brain cells in a transgenic mouse model. But when they found a way to rescue those cells, they were astonished to discover the mice still became sick.

21 Dec 2004