Brightsurf Science News & Current Events

March 16, 2004
Transdermal patch as effective as intravenous pump for post-op pain control
Use of a transdermal patch to deliver pain medication was found to be equivalent to medication delivered by an intravenous pump for controlling pain following surgery, according to a study in the March 17 issue of The Journal of the American Medical Association (JAMA).

Tumor suppressor genes predict bladder cancer future
The presence of two mutated genes in bladder cancer tumors indicates there is a high risk that the cancer will continue to grow and spread, said a Baylor College of Medicine (BCM) researcher in a report released today in March 15 issue of the Journal of Clinical Oncology.

Refuting Neandertal ancestry
An international multidisciplinary team of scientists led by Svante Paabo of the Max Planck Institute for Evolutionary Anthropology have analyzed the largest sample of Neandertal and early human remains to date and conclude that Neandertals could not have made a significant genetic contribution to early modern humans.

Top medical and scientific societies commit to providing free access to research
Representatives from 48 of the nation's leading not-for-profit medical/scientific societies and publishers announce their commitment to providing free access and wide dissemination of published research findings.

Oceans' acidity influences early carbon dioxide and temperature link estimates
An international team of geoscientists believes that carbon dioxide, and not changes in cosmic ray intensity, was the factor controlling ancient global temperatures.

Other highlights of the March 17 issue of JNCI
Other highlights include a study of HPV in head and neck cancers, an animal study of ways to optimize treatment for breast cancer with letrozole and tamoxifen, an animal study of arsenic exposure and estrogen signaling, a study of melatonin levels and breast cancer risk, and a commentary on statistical methods for studies that examine associations between genetic variants and common cancers.

Dioxin-receptor network identified
A cell responds to pollutants - such as dioxin - via intricate and complex biochemical pathways beginning with the interaction of the pollutant molecule with a cell surface receptor.

Banned chemical travels across three oceans
A chemical once used in pesticides in Asia has accumulated thousands of miles away in Canada, according to a University of Toronto study.

Heart and lung transplantation clinical trial results to be announced at ISHLT meeting
The 24th Annual Meeting and Scientific Session of the International Society for Heart and Lung Transplantation (ISHLT) will feature presentations and debate on advances and emerging technologies in the fields of late stage heart and lung failure, thoracic transplantation, cell transplantation, and tissue engineering and related infectious disease.

Recognition of racism helps in struggle, book says
Minority groups have internalized the racial oppression they face in their daily lives and they need to recognize this in fighting for equality, says a University of Toronto professor.

Home blood pressure test may be better than office test for predicting cardiovascular events
Home blood pressure monitoring may have better prognostic accuracy than office blood pressure measurements for patients treated for high blood pressure, according to a study in the March 17 issue of The Journal of the American Medical Association (JAMA).

'Male-killer' bacterium's genome is deciphered
Wolbachia, a parasitic

MEP calls for European strategy in the fight against breast cancer
The conditions necessary to lead to a 25 per cent reduction in breast cancer mortality must be in place across Europe by 2008 said MEP Karin Jöns at the opening of the 4th European Breast Cancer Conference.

Sensor technologies enhance factory operations
A new-age simulation engine that remotely controls factory processes in real time using data from sensors is likely to be the next big thing in assembly line operation management.

Life expectancy of diabetics 12 years less than others
Ontario diabetics live 12 to 13 years less than people without the disease, says a new study - a finding which is one of the factors prompting the Ministry of Health and Long-Term Care to investigate additional strategies for diabetes management and prevention.

Treatment of ductal carcinoma in situ varies widely in United States
A new study has found that treatment of ductal carcinoma in situ (DCIS), a group of abnormal cells confined to the breast ducts, varies widely in the United States.

'Male-targeting' bacterium's genome is deciphered
The first complete genome analysis of a Wolbachia - intracellular bacteria that manipulate the reproduction of their host - has shed light on the biology and evolution of these fascinating microbes.

Radiation therapy effective for some patients with recurrent cancer after radical prostatectomy
For men with prostate cancer who have had their prostate removed and later show signs of cancer recurrence, several factors can help predict response to subsequent radiation therapy, according to a study in the March 17 issue of The Journal of the American Medical Association (JAMA).

'Shocking' research points to ways to protect technology
Toronto's CN Tower acts as a lightning laboratory, teaching scientists how to protect delicate electronic equipment against high-voltage surges, says a new study.

20 scientists selected as Aldo Leopold Leadership Fellows
Twenty outstanding academic environmental scientists from throughout the U.S. have been selected as Aldo Leopold Leadership Fellows and will participate in intensive communications and leadership training.

How amphetamine affects the dopamine transporter
It is thought that abnormal concentrations of dopamine in synapses initiate a series of events that cause the behavioral effects of many psychostimulants, including amphetamine.

Optical glucose sensor holds promise for diabetics and intensive care patients
Researchers at the University of California, Santa Cruz, have developed a novel optical glucose sensor that could be used to provide continuous monitoring of glucose levels in diabetics and hospitalized patients.

UMaine receives patent for stronger building panel
The home of the future may stand up better to earthquakes, hurricanes and other stresses as a result of a newly patented invention at the University of Maine.

JCO to offer free online access to archived content
The Journal of Clinical Oncology (JCO), the authoritative source for current information on the diagnosis and treatment of patients with cancer, today announced that it will immediately begin providing free online access to original research articles older than one year.

SOHO snaps spectacular Sun shot
On Friday, 12 March 2004, the Sun ejected a spectacular 'eruptive prominence' into the heliosphere.

Fish oil supplements may contain flame retardants
Flame retardant levels have increased significantly during the past four years in dietary supplements based on cod liver oil, according to a new study by European scientists.

Young scientists awarded for achievements in cancer research
To maintain the flow of keen minds into the research talent pool, the American Association for Cancer Research is holding two special programs for young scientists at this year's Annual Meeting: the AACR-Thomas J.

Challenging shrubland fire management
In the March issue of Frontiers in Ecology and the Environment, Max Moritz (University of California, Berkeley), Jon Keeley (US Geological Survey and University of California, Los Angeles), Edward Johnson (University of Calgary) and Andrew Schaffner (Cal Poly State University, San Luis Obispo) present research that suggests natural fire regimes, such as those found in southern California, are

£76 million research centre to make the UK a global centre of excellence for clinical imaging
GlaxoSmithKline (GSK) and Imperial College London today announce a unique research collaboration in medical imaging.

Jefferson-led study shows transdermal system as effective as IV pump for post-surgical pain
A new study led by researchers at Jefferson Medical College shows that a needle-free, self-contained fentanyl patient-controlled transdermal system (PCTS) is as effective for post-surgical pain management as the traditional intravenous pump (IV), giving patients more mobility and freeing nurses to devote more time to patient care.

New, comprehensive tumor classification combines molecular biology and classic pathology
Information about the genetic make-up of tumors should, in the long term, help clinicians decide on the most effective course of treatment for patients with cancer.

Adaptive regulatory T cells suppress killing of persistently infected cells
Scientists report that they have identified a cellular mechanism that prevents the immune system from destroying chronic, incurable viral infections such as herpes, hepatitis and human immunodeficiency virus (HIV).

High association between welfare, poor health: Study
Canadians on welfare have significantly higher odds of reporting poor physical and mental health, finds a University of Toronto study. 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