Medical Science News

RSS

Cancer-detecting nanoparticles

Magnetic resonance imaging (MRI) can be a doctor's best friend for detecting a tumor in the body without resorting to surgery. MRI scans use pulses of magnetic waves and gauge the return signals to identify different types of tissue in the body, distinguishing bone from muscle, fluids from solids, and so on.

15 Jun 2008

Targeted quantum rods probe blood-brain barrier

One of the chief difficulties in treating brain tumors involves getting potential tumor-killing drugs across the blood-brain barrier and into the brain.

15 Jun 2008

Scientist deciphers language bacterial cells use to 'talk' to each other - also discovers how to quell their conversation

Understanding the way bacterial cells "talk" to each other could lead to more effective methods for fighting the often persistent and serious infections caused by the biofilms they form, says a Texas A&M University professor of chemical engineering who not only has deciphered their language but also discovered how to quell their conversation.

11 Jun 2008

Three sequencing companies join 1000 Genomes Project

Leaders of the 1000 Genomes Project announced today that three firms that have pioneered development of new sequencing technologies have joined the international effort to build the most detailed map to date of human genetic variation as a tool for medical research. The new participants are: 454 Life Sciences, a Roche company, Branford, Conn.; Applied Biosystems, an Applera Corp. business, Foster City, Calif.; and Illumina Inc., San Diego.

11 Jun 2008

Coated gold nanoparticles for drug delivery

In work that could at the same time impact the delivery of drugs and explain a biological mystery, MIT engineers have created the first synthetic nanoparticles that can penetrate a cell without poking a hole in its protective membrane and killing it.

11 Jun 2008

New research refutes myth of pure Scandinavian race

A team of forensic scientists at the University of Copenhagen has studied human remains found in two ancient Danish burial grounds dating back to the iron age, and discovered a man who appears to be of arabian origin.

10 Jun 2008

Synthetic Biology: funders move to address social and ethical challenges

The report of an independent review of social and ethical challenges associated with research into, and the application of, synthetic biology, is published (9 June).

10 Jun 2008

Arsenic and new rice

Amid recent reports of dangerous levels of arsenic being found in some baby rice products, scientists have found a protein in plants that could help to reduce the toxic content of crops grown in environments with high levels of this poisonous metal.

10 Jun 2008

Nose stem cells used to treat Parkinson's

Scientists in Queensland, Australia have made a major breakthrough in research into Parkinson's disease.

9 Jun 2008

New pathogen from pigs' stomach ulcers

Scientists have isolated a new bacterium in pigs' stomachs thanks to a pioneering technique, offering hope of new treatments to people who suffer with stomach ulcers, according to research published in the June issue of the International Journal of Systematic and Evolutionary Microbiology.

8 Jun 2008

Talking to cells

For an organism to develop and function, the individual cells must exchange information, or communicate, with each other. Is it possible to learn their language and "talk to" the cells? Yes it is: Cameron Alexander and George Pasparakis at the University of Nottingham (UK) have been able to facilitate a conversation between bacterial cells and artificial polymer vesicles.

5 Jun 2008

Synthetic molecules developed by Hebrew University researchers hold promise for new family of anti-cancer drugs

Synthetic molecules designed by two Hebrew University of Jerusalem researchers have succeeded in reducing and even eliminating the growth of human malignant tissues in mice, while having no toxic effects on normal tissue.

4 Jun 2008

A genetic tool for cleaner water

A genetic tool used by medical researchers may also be used in a novel approach to remove harmful microbes and viruses from drinking water.

3 Jun 2008

Nanotechnology specialist discovers method to regenerate cartilage naturally

Scientists have long wrestled with how to aid those who suffer cartilage damage and loss. One popular way is to inject an artificial gel that can imitate cartilage's natural ability to act as the body's shock absorber. But that solution is temporary, requiring follow-up injections.

3 Jun 2008

Personal genomes may lead to personalized vitamin supplements

As the cost of sequencing a single human genome drops rapidly, with one company predicting a price of $100 per person in five years, soon the only reason not to look at your "personal genome" will be fear of what bad news lies in your genes.

2 Jun 2008

Mouse ovaries and testes age in unique ways

Aging leads to large changes in gene activity in the ovaries of mice, but only limited changes in testes, according to research published in the open-access journal, BMC Biology.

2 Jun 2008

Salmonella bacteria found in garden birds are sensitive to antibiotics

Scientists at the University of Liverpool have found that Salmonella bacteria found in garden birds are sensitive to antibiotics, suggesting that the infection is unlike the bacteria found in livestock and humans.

2 Jun 2008

Gene discovery could help answer basic questions of upright walking

What are the genes implicated in upright walking of humans? The discovery of four families in which some members only walk on all fours (quadrupedality) may help us understand how humans, unlike other primates, are able to walk for long periods on only two legs, a scientist will tell the annual conference of the European Society of Human Genetics tomorrow (Monday 2 June).

1 Jun 2008

Soil bacteria may offer potential treatments for MRSA and cancer

Big pharma gave up on soil bacteria as a source of antibiotics too soon, according to research published in the June issue of Microbiology. Scientists have been mining microbial genomes for new natural products that may have applications in the treatment of MRSA and cancer and have made some exciting discoveries.

1 Jun 2008

Self-assembled viruses

Viruses are true experts at importing genetic material into the cells of an infected organism. This trait is now being exploited for gene therapy, in which genes are brought into the cells of a patient to treat genetic diseases or genetic defects. Korean researchers have now made an artificial virus. As described in the journal Angewandte Chemie, they have been able to use it to transport both genes and drugs into the interior of cancer cells.

30 May 2008