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New regulatory mechanism for critical protein signaling domain

The study is being published in Science Express, an advanced online edition of the journal Science, on April 5. It will appear in the print version of Science later this spring.

7 Apr 2007

Scientists solve puzzle of osteoclasts

Breaking down bone is a tough job. Yet, our bones undergo remodeling every day of our lives, as old material is cleared away so that new bone can form.

3 Apr 2007

Polymers show promise for gene delivery

Virginia Tech polymer scientists have developed a new family of gene vectors , novel polymers that can ferry genetic material across the cell membrane so that it can be incorporated into the machinery of the cell.

3 Apr 2007

New understanding of the mechanics of hearing

Modern hearing aids, though quite sophisticated, still do not faithfully reproduce sound as hearing people perceive it.

3 Apr 2007

Breast-feeding exclusively lowers risk of vertical HIV transmission to children in developing countries

HIV-positive women in developing countries could reduce the risk of transmitting the virus to their infants if they exclusively breast-feed rather than supplement breast milk with formula, animal milk or solid food, according to a study published in the March 31 edition of the Lancet, Reuters reports.

2 Apr 2007

Scientists uncover bacterial cloaking

Scientists have uncovered the workings of a method bacteria responsible for diseases such as meningitis and blood disorders use to hide from the body's immune system.

2 Apr 2007

Breastfeeding significantly reduces risk of HIV transmission from mother to child

A study by scientists at the Africa Centre for Health and Population Studies, South Africa, has shown that exclusive breastfeeding can significantly reduce the risk of HIV transmission from mother to child in infants aged under six months when compared to those also given solid foods or replacement feed (i.e. formula milk).

2 Apr 2007

Scientists create small molecules to probe proteins deep inside cell membrane

Proteins, which form much of the molecular machinery required for life, are the targets of most drug molecules.

2 Apr 2007

Iron nanoparticles exhibit toxic effects on neuronal cells

Researchers at UC San Diego have discovered that iron-containing nanoparticles being tested for use in several biomedical applications can be toxic to nerve cells and interfere with the formation of their signal-transmitting extensions.

1 Apr 2007

Decoy receptor 3 expressed in rheumatic synovial fibroblasts protects the cells against Fas-induced apoptosis

A complex autoimmune disease, rheumatoid arthritis (RA) is characterized by chronic inflammation and progressive joint damage. This process begins with hyperplasia, or excessive increase in size and thickness, of synovial tissue. Along with provoking cartilage and bone destruction, this abnormal tissue growth is resistant to apoptosis, the natural cell death vital to the generation of healthy new cells.

30 Mar 2007

Newly discovered peptide could help transplant for diabetes

A peptide developed by scientists at Weill Cornell Medical College may expand the availability and durability of islet cell transplant for patients with type-1 diabetes, which is characterized by a lack of these insulin-producing cells.

21 Mar 2007

Cannibalistic signals help mammalian embryos develop normally

A cannibalistic process called autophagy spurs dying embryonic stem cells to send "eat me" and "come get me" signals to have their corpses purged, a last gasp that paves the way for normal mammalian development, UT Southwestern Medical Center researchers have found.

8 Mar 2007

Archemix granted two European patents

Archemix has announced today the issuance of two key, broad patents by the European Patent Office ("EPO"). The patents, EP 0 786 469 and EP 0 668 931, broadly cover methods for the identification and use of aptamers for therapeutic applications.

8 Mar 2007

Link between growth of blood vessels critical to spread of cancer and copper in our bodies

Growing new blood vessels from existing ones - a process called angiogenesis - is important in growth, development and wound healing. But it also enables the spread of tumors throughout the body, so researchers have been scrambling for ways to stop angiogenesis in the fight against cancer.

28 Feb 2007