Brightsurf Science News & Current Events

June 23, 2003
New aneurysm repair technology used for first time in Canada in Montreal
Physicians at the Montreal Neurological Institute and Hospital are using a new technology to treat patients with brain aneurysms.

microPET® focus improves on small animal imaging capabilities
A recent study evaluated improvements in the spatial and energy resolutions and sensitivity of microPET® Focus, a second-generation PET system designed for animals.

FDHT PET imaging of androgen receptors detects prostate cancer
A recent study has revealed that FDHT-PET scanning of androgen receptors (AR) is successful in imaging patients with prostate cancer.

Green, black tea extracts found to lower cholesterol
Green tea has been associated with lower cholesterol. This study shows in a human randomized, double-blind, placebo controlled trial that a green-tea extract lowered cholesterol by 16 percent.

Researchers grow nanowires onto MEMS platform in room temperature chamber
UC Berkeley researchers have found a way to localize the extreme heat necessary for nanowire and nanotube growth, enabling them to synthesize the nanomaterials directly onto microstructures without damaging the sensitive microelectronics just one-tenth of a human hair strand away.

Combination of SPECT and CT imaging most comprehensive evaluation of coronary disease
A recent study finds that the most accurate and complete noninvasive diagnosis of coronary artery disease is achieved through combining the results of SPECT and CT imaging.

AHA's new physical activity statement puts health-care professionals on the move
Health-care professionals should prescribe physical activity to prevent and treat cardiovascular disease, according to a new American Heart Association scientific statement published in today's Circulation: Journal of the American Heart Association.

PET reveals increased dopamine levels in ADHD patients
Researchers conducted a study using PET technology to gauge extracellular dopamine (DA) levels in ADHD patients.

News tips for the June 24 issue of Neurology
The June 24 issue of Neurology includes news about HIV-associated dementia, lyme disease, and a possible link between insulin and dementia.

PET-CT more accurate than PET in staging lung cancer patients
Researchers from the University of Alabama assessed the lung cancer tumor staging accuracy of PET alone (defined as interpretation of a PET scan along with evaluation of a CT scan performed within one week of PET) versus PET-CT (evaluation of concomitant PET and CT scans from the GE Discovery LS system).

Newly mapped gene for ruptured heart may lead to life-saving treatment
Researchers studying an inherited life-threatening heart disorder have mapped a new location for a genetic mutation that causes the problem, according to a report in today's rapid access issue of Circulation: Journal of the American Heart Association.

The high cost of diabetes
In this issue of the CMAJ, Scot Simpson and colleagues report that medical costs incurred by 3.6% of people in Saskatchewan who had diabetes accounted for 15% of total provincial expenditures on hospital admissions, physician services and prescription drugs.

Researchers detect receptor for day/night cycles
It's been something of a mystery to scientists - how are blind mice able to synchronize their biological rhythms to day and night?

Osteoarthritis patients can benefit from radiosynoviorthesis
A recent study revealed that radiosynoviorthesis - the application of beta-emitting radionuclides to remove the inflamed membrane - is an effective treatment strategy for patients with osteoarthritis in their fingers.

Study finds direction of enzymes affects DNA repair
DNA repair enzymes do a much better job of repairing damaged genes if they are facing in one direction instead of the other.

Reducing the risk of frost damage to short-season crops
Agriculture and Agri-Food Canada researchers are investigating the importance of flowering time and maturity by grafting soybean plants using a combination of early and late flowering plants.

Pancreatic cancer linked to errant reactivation of embryo cell pathway
Research by Johns Hopkins Kimmel Cancer Center specialists has uncovered a novel pathway in the origin of pancreatic cancers, one of the deadliest of malignancies.

Transplanted cardiac cells can be monitored with microPET imaging
Results of a study using microPET imaging technology to monitor the survival of transplanted rat cardiac cells within the myocardium - the middle layer of the wall of the heart composed of cardiac muscle fibers that allow the heart to contract - of living rats showed that microPET indicated the presence and location of viable transplanted cells.

Society of Nuclear Medicine announces Image of the Year
The Society of Nuclear Medicine's 2003 Image of the Year is an example of technological improvements that show a diagnostic quality whole-body scan can be obtained in under ten minutes.

Top international experts highlight new evidence on the future of work
The world's leading experts on the future of work will speak at a two-day conference (23-24 June) held in London and hosted by the ESRC-funded Future of Work Research Programme.

Michigan, Connecticut and Illinois chemists receive award for drug to combat antibiotic resistance
A team of chemists from Pfizer Inc. and Abbott Laboratories was honored June 17 by the American Chemical Society for discovering and developing a potent drug to fight antibiotic-resistant bacteria.

Rush researchers find effects of Alzheimer's disease may be influenced by education
Researchers at Rush-Presbyterian-St. Luke's Medical Center have found that the more formal education a person has, the better his or her memory and learning ability, even in the presence of brain abnormalities characteristic of Alzheimer's disease (AD).

Molecular fingerprint predicts HIV-associated dementia
A new study using a cutting edge research technique called

Harry Potter and the Ecuadorian flowers
Harry Potter's influence pervades even the science of plant taxonomy at Rutgers, The State University of New Jersey.

Molecular 'Piggyback Ride' carries Alzheimer's protein into brain
Scientists studying the brains of mice have discovered how the toxic protein that destroys the brain cells of Alzheimer's patients enters the brain.

Cities vital for new businesses, says management professor
Despite the proliferation of electronic communication, a company's physical location - especially in a city - is extremely important in attracting new businesses and supporting entrepreneurship in the new economy, say researchers.

Project examines early Buddhist teachings
A University of Toronto study examining the connection between Tibetan and Chinese Buddhism could point to the early traditional teachings of the Buddhist religion.

Combination of collimation techniques improves SPECT imaging in brain
SPECT imaging is useful in detecting and monitoring brain disorders.

Food programs little economic benefit for poor families: Study
Governments have funded nutrition programs in part to address the problem of child hunger.

Neoral is associated with less diabetes and diarrhoea than tacrolimus in liver transplantation
New study data found that liver transplant patients receiving Neoral® (cyclosporin for microemulsion) and managed by C2 monitoring experience significantly less diabetes and diarrhoea compared to those given tacrolimus.

FDG PET accurately evaluates infection and inflammation
Observing the wide and growing acceptance for using FDG PET to detect various kinds of cancer and monitor treatments, a group of researchers recently showed that FDG-PET is also extremely accurate for assessing infection and inflammation.

Scientists identify genetic link between cancer and aging
A collaboration of scientists mainly from the Fred Hutchinson Cancer Center and at the University of Washington (Seattle) has made an important discovery linking the powerful cancer-causing oncogene, myc, with the gene behind the premature aging disease, Werner syndrome.

Medical publishing turns on the afterburners
In this editorial, CMAJ Editor John Hoey points out that the recent SARS outbreak provided a look at what the future holds for medical publishing.

Rare stroke risk related to air travel
A rare type of stroke can occur as a result of long airplane flights, according to a study in the June 24 issue of Neurology, the scientific journal of the American Academy of Neurology.

Heart failure patients have lower death rates under cardiologists' care
Hospitalized heart failure patients treated by cardiologists are more likely to be alive a year later than patients cared for by general internists and family practitioners, according to a report in today's rapid access issue of Circulation: Journal of the American Heart Association.

Connecticut chemist receives award for cleaner air technology
William C. Pfefferle, of Precision Combustion Inc. in North Haven, Conn., was honored June 17 by the American Chemical Society for developing technologies that reduce the emission of greenhouse gases.

eZ-Scope shows promise for improving accuracy of sentinel node surgery
A recent study tested eZ-Scope - a hand-held gamma camera - alongside the most widely used gamma probe for sensitivity, handling, and spatial resolution.

123 Altropane® SPECT shows potential as diagnostic tool for ADHD
A recent study revealed that SPECT imaging can be used to complement the standard testing and interviews used to diagnose Attention Deficit Hyperactivity Disorder (ADHD).

Research shows importance of diversity
The American Educational Research Association (AERA) applauds the decisions today by the U.S.

FDHT PET additional possibility for tumor localization in prostate cancer patients
Researchers used FDHT PET to investigate the presence of functioning androgen receptors in patients with metastatic prostate cancer.

Blacks less likely to benefit from high-tech treatments for rapid heartbeat
Testing to guide treatment of rapid heart rhythms leads to poorer survival in blacks than in whites, according to research published in today's rapid access issue of Circulation: Journal of the American Heart Association.

Brain imaging confirms that people feel pain differently
Brain imaging confirms that some individuals really are more sensitive to pain than others, report researchers from Wake Forest University Baptist Medical Center in this week's on-line edition of the Proceedings of the National Academy of Sciences.

Researchers discover birds protect trees in neotropics by eating insects
High in the canopy of a Neotropical Panamanian forest, researchers have discovered that birds, especially native ones during the rainy season, protect trees by reducing the numbers of leaf-eating insects.

FLT-PET is more accurate gauge of the success of chemotherapy for breast cancer patients
A study comparing FDG and FLT PET suggests that FLT PET may be a better tool for forecasting the long-term success of breast cancer chemotherapy regimens.

NIAID offers 'SARS chip' free to researchers
To spur research on severe acute respiratory syndrome (SARS), the National Institute of Allergy and Infectious Diseases (NIAID) today announced a free distribution program for a new

Effects of Alzheimer's disease may be influenced by education
The more formal education a person has, the better his or her memory and learning ability even in the presence of brain abnormalities characteristic of Alzheimer's disease (AD), according to new findings from the Religious Orders Study, a major national study of aging.

PET reveals the effect of smoking on peripheral organs
Researchers who recently found reduced levels of monoamine oxidase B (MAO B) in the brains of smokers using positron emission tomography (PET) scans now provide compelling evidence that MAO in peripheral organs - the kidneys, heart lungs and spleen - is also affected.

PET provides insight into schizophrenic brain function
Schizophrenia is a devastating disease that affects some 2.5 million Americans.

Intracoronary infusion of progenitor cells after acute myocardial infarction
Researchers in Germany recently showed that PET and SPECT can be used to monitor the success of progenitor cell transplants in human heart attack victims.

Crystal structures light the way to optical microchip
A new class of microscopic crystal structures developed at the University of Toronto is bringing high bandwidth optical microchips one step closer to efficient, large-scale fabrication.

Alcatel Space and Astrium forge agreement for AlphaBus
The European satellite communications industry today reached a landmark of cooperation at Le Bourget air show in France.

ACS announces awards for environmentally conscious business innovation
A Brooklyn, N.Y., researcher and companies in Kentucky, California, Delaware and Georgia were honored today by the U.S.

'Reverse CPR' performed on back could better restore blood flow
A pilot study of the first proposed major change in decades to cardiopulmonary resuscitation (CPR) suggests that performing the maneuver while patients are on their stomachs offers far better restoration of blood flow and blood pressure than the standard practice of keeping patients on their backs.

Elevated CRP may indicate stroke-causing plaque
Elevated levels of a blood-marker for inflammation are associated with a significantly increased risk of stroke among the elderly regardless of the amount of plaque in the arteries leading to the brain, scientists report in today's rapid access issue of Circulation: Journal of the American Heart Association.

Living, and giving life, with HIV
David Burdge and colleagues present the latest Canadian consensus guidelines that provide evidence-based recommendations to practitioners involved in all stages of pregnancy management of HIV patients, including the proper care for their infants.

Most cited researchers in the world at UC Riverside
Nine scientists at UCR have been recognized as some of the most highly cited researchers in the world. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to