Laboratory News and Research

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Tooth whiteners that could enhance teeth's natural healing ability

...may soon be available in over-the-counter gels and strips, according to a dental researcher who shared his team's latest findings today at the American Dental Association's national media conference.

9 Jun 2005

MicroRNAs play an important role in human cancer

Over the past few years, scientists have discovered that a new class of genetic regulators called "microRNAs" influences normal human growth and development. Now, researchers have found that microRNAs also play an important role in human cancer. The findings are published in today's issue of the journal Nature (June 9).

9 Jun 2005

New study shows tiny RNAs intimately associated with cancer

In discoveries that may open a new chapter in understanding and diagnosing cancer, Howard Hughes Medical Institute (HHMI) investigators and their colleagues have established that tiny microRNAs provide a novel genetic route to the initiation of some forms of cancer.

9 Jun 2005

Atrial fibrillation may soon have an effective treatment

In laboratory tests in dogs, cardiac researchers at Washington University School of Medicine in St. Louis have found that treatment with anti-inflammatory drugs after heart surgery may lessen or prevent atrial fibrillation. They report their findings in the June 7 issue of Circulation.

8 Jun 2005

Sick infants in hospital intensive care units exposed to high levels of toxic phthalate

A first-of-its-kind study released today by Harvard University scientists found that babies in Neonatal Intensive Care Units (NICUs) receiving intensive therapy with polyvinyl chloride (PVC) medical devices were exposed to a toxic phthalate at very high levels -- an average of 25 times higher than the general population and up to 50 times higher for the most exposed.

8 Jun 2005

Researchers link aberrant 'microRNA' expression to human cancer

8 Jun 2005

Canada's first two human embryonic stem cell lines

A senior scientist at Mount Sinai Hospital has developed Canada's first two human embryonic stem cell lines, giving researchers across the country new potential and hope for eventually discovering treatments and cures for many chronic and fatal diseases.

8 Jun 2005

Several minute intermediate stage in virus-cell fusion may represent a window of opportunity for drug development

To ignite a life-threatening infection in the body, a virus such as HIV invades body cells by first merging, or fusing, with the cell's outer membrane. Once inside the cell, the invading microbe's genetic material takes over, turning the 'host' cell into a factory to produce more copies of the virus, which then spill out to invade other cells in the body.

8 Jun 2005

New understanding of microRNAs

Ribonucleic acid, or RNA, has long been thought to be important only to translate a gene's DNA into the proteins that are cells' workhorses. But new evidence shows that tiny bits of RNA not used to make proteins actually play central roles in normal biology and in the development of cancers.

8 Jun 2005

Home test kits provide young women with a safe and effective means for protecting their sexual reproductive health

Researchers at Johns Hopkins say they have evidence that more than one-third of young women are willing and able to use a free, easily available home test kit to privately and accurately learn if they are infected with Chlamydia trachomatis, the most common sexually transmitted disease (STD) in this group.

8 Jun 2005

Prototype drug shows promise in slowing replication of the virus responsible for SARS

A prototype drug created by researchers at the University of Illinois at Chicago shows promise in slowing replication of the virus responsible for severe acute respiratory syndrome, or SARS.

8 Jun 2005

Eat raisins to fight gum disease!

Compounds found in raisins fight bacteria in the mouth that cause cavities and gum disease, according to researchers at the University of Illinois at Chicago.

8 Jun 2005

Risk factors for tuberculosis in the United States overlap with many of the risk factors associated with persistent homelessness

...including being male or having a history of incarceration or substance abuse, according to a report in the June 8 issue of JAMA, a theme issue on tuberculosis.

8 Jun 2005

New bioinformatics technique for systematically analyzing key regions in DNA that help control gene activity

Scientists at Lawrence Livermore National Laboratory (LLNL) and the Linnaeus Centre for Bioinformatics (LCB) at Uppsala University in Sweden have developed a new bioinformatics technique for systematically analyzing key regions in DNA that help control gene activity.

8 Jun 2005

Drinking cranberry juice may fight that tummy bug

A new study suggests that cranberry juice, a well documented remedy to help prevent urinary tract infections, may also work against gastrointestinal viruses.

8 Jun 2005

Researchers discover quick new way that mosquitoes can pass West Nile virus to each other

The new study challenges fundamental assumptions about the virus' transmission cycle and may help explain why it spread so rapidly across North America despite experts' predictions that it would progress more slowly or even die out.

6 Jun 2005

Gene therapy for arthritis is both feasible and safe

Gene therapy for arthritis and other non-terminal, debilitating conditions and diseases is both feasible and safe, report researchers who conducted the world's first such test on the approach in patients with advanced rheumatoid arthritis.

6 Jun 2005

World first air purification technology for H5N1 Avian Influenza

Sharp Corporation has demonstrated that Plasmacluster Ions reduce activity of the highly fatal and highly pathogenic airborne H5N1 avian influenza ("bird flu") virus by 99%.

6 Jun 2005

Statisticians learn how to analyze huge quantities of genetic data

In a conceptual breakthrough, a team of researchers led by statisticians at the Harvard School of Public Health (HSPH) has figured out how to analyze huge quantities of genetic data, surpassing the capabilities of traditional techniques and speeding the quest for understanding the genetic basis of complex diseases such as asthma and diabetes.

6 Jun 2005