Medical Science News

RSS

Magnetic nanotags allow sensitive detection of cancer biomarkers

The detection of cancer-associated proteins, or biomarkers, in blood samples is a potentially powerful tool for early diagnosis of cancer and monitoring of cancer treatment.

29 Dec 2008

Measuring nanoparticle behavior in the body using MRI

One of the key steps in the development of any drug or imaging agent intended for human use is measurement of the adsorption, metabolism, and excretion of the drug.

29 Dec 2008

Targeted nanoparticles deliver therapeutic DNA to cancer cells

Given that cancer is a disease caused by gene mutations, cancer researchers have been striving to develop gene therapies aimed at correcting these mutations. However, these efforts have been hobbled by the difficulty in safely and efficiently delivering anticancer genes to tumors. Nanoparticles, however, may solve these delivery issues, and two recently published studies, using two different types of nanoparticles, lend credence to that hypothesis.

29 Dec 2008

Carbon nanotubes show promise in emerging field of neuro-engineering and neuroprosthetics

Research done by scientists in Italy and Switzerland has shown that carbon nanotubes may be the ideal "smart" brain material.

22 Dec 2008

Ancient African exodus mostly involved men

Modern humans left Africa over 60,000 years ago in a migration that many believe was responsible for nearly all of the human population that exist outside Africa today.

21 Dec 2008

Cellular reprogramming, the 'Breakthrough of the Year' according to AAAS

In its annual list of the year's top ten scientific breakthroughs, the journal Science has given top honors to research that produced "made-to-order" cell lines by reprogramming cells from ill patients.

18 Dec 2008

First nanomedicine textbook published

Formalizing progress in nanoscience and nanotechnology, engineering researchers at the University of Arkansas have published the first textbook on the emerging field of nanomedicine.

18 Dec 2008

New insight into the origin of face recognition in humans

Chimpanzees recognize their pals by using some of the same brain regions that switch on when humans register a familiar face, according to a report published online on December 18th in Current Biology, a Cell Press publication.

18 Dec 2008

Scientists coax bright white light from zinc oxide

Duke University and United States Army scientists have found that a cheap and nontoxic sunburn and diaper rash preventative can be made to produce brilliant light best suited to the human eye.

18 Dec 2008

Gold nanowires zap cancer

The next big thing in cancer treatment may be hotter, covered in more gold, and even be a better swimmer than recent Olympic champion Michael Phelps.

18 Dec 2008

New understanding of RNA and evolution

With the aid of a straightforward experiment, researchers have provided some clues to one of biology's most complex questions: how ancient organic molecules came together to form the basis of life.

18 Dec 2008

Primary cilium's GPS-like cell structure crucial to wound repair

The primary cilium, the solitary, antenna-like structure that studs the outer surfaces of virtually all human cells, orient cells to move in the right direction and at the speed needed to heal wounds, much like a Global Positioning System helps ships navigate to their destinations.

17 Dec 2008

Tiny magnetic crystals in bacteria are a compass

Scientists have shown that tiny crystals found inside bacteria provide a magnetic compass to help them navigate through sediment to find the best food, in research out today.

16 Dec 2008

Scientists fool bacteria into programming own death

Like firemen fighting fire with fire, researchers at the University of Illinois and the University of Massachusetts at Amherst have found a way to fool a bacteria's evolutionary machinery into programming its own death.

16 Dec 2008

Researchers develop natural, nontoxic method for biodegrading carbon nanotubes

University of Pittsburgh researchers have developed the first natural, nontoxic method for biodegrading carbon nanotubes, a finding that could help diminish the environmental and health concerns that mar the otherwise bright prospects of the super-strong materials commonly used in products, from electronics to plastics.

16 Dec 2008

Genes involved in antibiotic resistance vary within a species

The recent emergence of multidrug resistance (MDR) in Acinetobacter baumannii, a bacteria that causes infections primarily among seriously ill patients in the intensive care unit who may have reduced immune systems, has raised concern in health care settings worldwide.

16 Dec 2008

Single adult stem cell can self-renew in a mammal

The first demonstration that a single adult stem cell can self-renew in a mammal was reported at the American Society for Cell Biology (ASCB) 48th Annual Meeting, Dec. 13-17, 2008 in San Francisco.

14 Dec 2008

Biologist provides new theory on mechanisms that control molecular motors

Biologists have known for decades that cells use tiny molecular motors to move chromosomes, mitochondria, and many other organelles within the cell, but no one has been able to understand what "steers" these engines to their destinations.

12 Dec 2008

Scans show immune cells intercepting parasites

Researchers may have identified one of the body's earliest responses to a group of parasites that causes illness in developing nations.

10 Dec 2008

Panel blasts Bush administration's nanotech risk strategy

A National Research Council (NRC) committee has issued a highly critical report describing serious shortfalls in the Bush administration's strategy to better understand the environment, health and safety (EHS) risks of nanotechnology and to effectively manage those potential risks.

10 Dec 2008