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Researchers identify new virus alert signal that triggers the human immune system

Researchers from Aarhus University have now located the place in the human body where the earliest virus alert signal triggers the human immune system. They have also discovered a new alarm signal, which is activated at the very first sign of a virus attack.

23 Jun 2012

Researchers uncover why ointment and photodynamic therapy cause pain in skin cancer patients

Apply the ointment, light on, light off - that's how easy it is to cure various forms of non-melanoma skin cancer. However, the majority of patients suffer severe pain during the so-termed photodynamic therapy.

23 Jun 2012

Scientists decipher and block a molecular message that prompts unbridled cellular growth

What's good news in one setting might spell disaster in another. In cancer for instance, when a certain cell is commanded to grow and divide without restraint, it's a welcome message for the cell itself but a tragedy for the person who harbors this cell in his or her body. Weizmann Institute scientists have managed to decipher and block one type of molecular message that prompts unbridled cellular growth.

13 Jun 2012

RGS proteins play an essential role in night blindness

In a pair of related studies, scientists from the Florida campus of The Scripps Research Institute have identified several proteins that help regulate cells' response to light-and the development of night blindness, a rare disease that abolishes the ability to see in dim light.

12 Jun 2012

Molecular structure of APP protein could lead to new therapeutics for AD

The molecular structure of a protein involved in Alzheimer's disease - and the surprising discovery that it binds cholesterol - could lead to new therapeutics for the disease, Vanderbilt University investigators report in the June 1 issue of the journal Science.

1 Jun 2012

TAU researcher develops new antibodies to target and destroy cancer cells

Because cancer cells grow very quickly, chemotherapy is designed to target cells whose numbers grow rapidly. But this treatment comes with a heavy price - many healthy cells essential for body functions are also targeted and killed by the toxin. This dangerous side-effect has prompted researchers to seek better and more selective ways to kill cancer cells inside the body.

31 May 2012

Automated way to record electrical activity inside neurons in the living brain

Gaining access to the inner workings of a neuron in the living brain offers a wealth of useful information: its patterns of electrical activity, its shape, even a profile of which genes are turned on at a given moment. However, achieving this entry is such a painstaking task that it is considered an art form; it is so difficult to learn that only a small number of labs in the world practice it.

7 May 2012

Researchers investigate hydrogels' potential in drug delivery

The flexible properties of hydrogels - highly absorbent, gelatinous polymers that shrink and expand depending on environmental conditions such as humidity, pH and temperature - have made them ideal for applications from contact lenses to baby diapers and adhesives.

4 May 2012

Glycolipids play an important role in intercellular signalling

In a new study, scientists at the University of Copenhagen show that a specific type of carbohydrate plays an important role in the intercellular signalling that controls the growth and development of the nervous system. In particular, defects in that carbohydrate may result in the uninhibited cell growth that characterizes the genetic disease neurofibromatosis and certain types of cancer.

30 Apr 2012

Self-degradation response to antidepressant Zoloft observed in yeast cells

Princeton University researchers have observed a self-degradation response to the antidepressant Zoloft in yeast cells that could help provide new answers to lingering questions among scientists about how antidepressants work, as well as support the idea that depression is not solely linked to the neurotransmitter serotonin.

25 Apr 2012

Scientists discover new mechanism for regulation of AQP function

Scientists at Aston University (UK) have identified a new mechanism responsible for regulating the flow of water into and out of cells. This discovery will improve understanding of how the body maintains its water balance in health and disease.

25 Apr 2012

Researchers identify gene that increases risk of MI in newborns with CF

Researchers at Johns Hopkins have identified a gene that modifies the risk of newborns with cystic fibrosis (CF) developing neonatal intestinal obstruction, a potentially lethal complication of CF.

24 Apr 2012

Hydrophilic carbon cluster HADES can selectively kill brain cancer cells

Nanomedicine researchers at the Methodist Neurological Institute and Rice University have developed a way to selectively kill brain cancer cells by using a tiny syringe to deliver a combination of chemotherapy drugs directly into the cells. These findings will be published in the April 24 issue of the American Chemical Society journal ACS Nano.

17 Apr 2012

Delivering chemotherapy drugs with nanobubbles more deadly to cancer cells

Using light-harvesting nanoparticles to convert laser energy into "plasmonic nanobubbles," researchers at Rice University, the University of Texas MD Anderson Cancer Center and Baylor College of Medicine (BCM) are developing new methods to inject drugs and genetic payloads directly into cancer cells.

9 Apr 2012

Scientists identify how Clec9A protein recognises foreign invaders

The discovery of how a vital immune cell recognises dead and damaged body cells could modernise vaccine technology by 'tricking' cells into launching an immune response, leading to next-generation vaccines that are more specific, more effective and have fewer side-effects.

6 Apr 2012

Brain games, exercise and diet help prevent cognitive slide

Exercising, eating a healthy diet and playing brain games may help you keep your wits about you well into your 80s and even 90s, advises a new book by researchers at George Mason University.

5 Apr 2012

Study: Functional link between two major causes of treatment failure in breast cancer

Research from The Cancer Institute of New Jersey (CINJ) shows a functional link between two major causes of treatment failure in breast cancer, showing the protein behind one of these causes plays a role in increasing the drug resistance properties of the other.

4 Apr 2012

Study sheds light on cellular mechanisms involved in flu resistance

Scientists from the University of Utah School of Medicine have discovered that a mouse protein called IFITM3 contributes to the body's defense against some types of viral infections by binding to an enzyme responsible for regulating the pH of a cell's waste disposal system.

2 Apr 2012

Genetic variations could be linked with meconium ileus in CF patients

University of North Carolina at Chapel Hill researchers working as part of the International Cystic Fibrosis Consortium have discovered several regions of the genome that may predispose cystic fibrosis (CF) patients to develop an intestinal blockage while still in the uterus.

2 Apr 2012

Gold nanoparticles used to introduce chemical residues into the immune system

Developing a drug or vaccine requires a delicate balancing act with the immune system. On one hand, medications need to escape detection by the immune system in order to perform their function. But vaccinations - de-activated versions of a disease or virus - need to do the reverse. They prompt the immune system to create protective antibodies.

27 Mar 2012