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Findings could lead to improvements in the next generation of implantable cardioverter defibrillators

For people who suffer from a rapid heartbeat condition called tachycardia, an implanted device can usually nudge the racing blood pump back into a normal rhythm by applying electrical pulses to the heart.

25 Oct 2004

Ductal lavage is not an effective method for detecting breast cancer

Ductal lavage--a method used to collect cells from the milk ducts of the breast--has been proposed as a screening tool for cancer detection because ducts that yield fluid were thought to be more likely to contain cancer cells.

21 Oct 2004

Research shows brain cells move like a two-stroke engine

Following the often-quoted advice of Yogi Berra — "You can observe a lot by just watching" — Rockefeller University scientists show that nerve cells in the developing brains of humans and other mammals move in a two-part "step" led by a structure within the cell called the centrosome.

13 Oct 2004

Robotic microscope shows how mutant Huntington's disease protein affects neurons

Using a specially designed robotic microscope to study cultured cells, researchers have found evidence that abnormal protein clumps called inclusion bodies in neurons from people with Huntington's disease (HD) prevent cell death.

13 Oct 2004

Carbon nanotubes offer a new approach to gene therapy

Many genes that are related to particular diseases have now been identified. Scientists are trying to use this knowledge to treat diseases.

11 Oct 2004

First use of technology called ubiquitin-mediated fluorescence complementation to study a cell-signaling mechanism called ubiquitination

Researchers at the University of Michigan Medical School and Howard Hughes Medical Institute have found a way to see proteins in cells that have been tagged by a molecular “sticky note” called ubiquitin.

8 Oct 2004

In a world first, scientists have successfully grown square bacteria in the lab

In a world first, Australian scientists have successfully grown an unusual square-shaped bacterium found in salt lakes that has mystified scientists for a quarter of a century.

7 Oct 2004

Novel compound that resembles vitamin E halves the size of tumors and the ability of cancer to spread

By studying cancer in mice, researchers at The University of Texas at Austin have gained preliminary evidence that a novel compound that resembles vitamin E halves the size of tumors and the ability of cancer to spread to other body sites.

30 Sep 2004

Microdebrider better than CO2 laser for removal of most pediatric airway lesions

Citing improved safety and effectiveness at lower cost, a major medical center has adopted the microdebrider to replace the CO2 laser for removal of most pediatric airway lesions, including stenoses, granulation tissue, and cysts.

18 Sep 2004

Jellyfish advance science

Salmon fishermen trolling along the waters off Puget Sound in Washington are often witness to an awesome sight when they haul in their catch: salmon captured in nets that glow brilliantly against the nighttime sky.

16 Sep 2004

Researchers have discovered a possible way to distinguish lethal from localized prostate cancers

If future studies show their test -- measuring the level of activity of a signaling pathway called Hedgehog -- can predict which prostate cancers will spread, the results could revolutionize decision making processes for prostate cancer patients, the researchers say.

13 Sep 2004

New Zealand initiative to widen biotech industry

An initiative aimed at addressing the need for well-rounded, enterprise-savvy biotech scientists in New Zealand, will be launched at The University of Auckland next week.

10 Sep 2004

Study provides insight on how DNA code is turned into instructions for protein construction

A team of scientists from the Hebrew University of Jerusalem and the Weizmann Institute of Science has revealed the structure of a cellular editor that “cuts and pastes” the first draft of RNA straight after it is formed from its DNA template.

9 Sep 2004

Ultra-sensitive measurement technique shows how biomolecular motors carry out essential tasks

In the human body, hundreds of different types of biomolecular motors help carry out such essential tasks as muscle contraction, moving chromosomes during cell division, and reloading nerve cells so they can repeatedly fire.

30 Aug 2004

Drug developers should take a different approach to snake venom and heart medications

With the help of snake venom and sophisticated laboratory testing, scientists believe they've uncovered the reason why a group of new heart medications were doing some patients more harm than good.

17 Aug 2004

Researchers map structure of anti-cancer molecule and open the door to the creation of more effective cancer treatments

Scientists at Emory University, in collaboration with researchers at three national laboratories, have solved the structural puzzle of how an emerging class of promising cancer drugs works to halt cell division. The discovery potentially opens the door to the creation of more effective cancer treatments.

13 Aug 2004

Advances in biomedical imaging could lead to more sensitive screening tests for cancer-fighting drugs

Advances in biomedical imaging are allowing UC Davis researchers to use mice more effectively to study cancers comparable to human disease. The system can distinguish different stages of cancer and could lead to more sensitive screening tests for cancer-fighting drugs.

9 Aug 2004

New fluorescent dye technique may provide new insight into how cancerous tumors begin and grow

A technique developed by University of California, San Diego biologists, which uses bright fluorescent dyes to reveal the activity of genes in individual cells of an organism, promises to be a boon to developmental biologists, and may provide new insight into how cancerous tumors begin and grow.

6 Aug 2004

Physicians offer several promising and unique approaches to brain tumor treatment

An estimated 41,000 new cases of primary brain tumors are expected to be diagnosed in 2004, according to the American Brain Tumor Association.

5 Aug 2004

New screening test for oesophageal (food pipe) cancer

A new screening test for oesophageal (food pipe) cancer could dramatically improve survival from the disease, according to research published in the British Journal of Cancer this week.