Brightsurf Science News & Current Events

October 15, 1999
New DNA chip method could improve cancer diagnosis
In a study reported in Friday's Science, a team of Whitehead- led researchers reports the first systematic and objective approach for identifying and classifying tumor types.

MIT team reports powerful tool for studying sugars
MIT researchers report a powerful new tool for studying complex sugars, materials that have recently been shown to play key roles in processes from viral infection to tissue development.

A new ion channel involved in cell proliferation: evidence for its oncogenic potential
The process of cell proliferation is tightly controlled. Cancer develops when cells start to proliferate and escape that control.

New guidelines for ascertaining the relation between childbirth and cerebral palsy
This week's BMJ contains an international consensus statement on what is known about the causal relation between acute events during childbirth and cerebral palsy.

New light on the role of microbial pathogens in atherosclerosis
Results just obtained by Alain Tedgui's team (Inserm unit 141) provide answers to key questions on atherosclerosis, by showing that bacteria and viruses can induce atherosclerosis when an anti-inflammatory cytokine, interleukin 10, is lacking.

No evidence to suggest breast cancer is linked to stress
The belief that the onset of cancer may be associated with a stressful experience is found in literature as far back as 1701, but researchers from Leeds report that there is no evidence to support the idea that stressful life experiences are associated with the onset of breast cancer.

Heart cells closely control their own oxygen supply
The cells powering the heartbeat actively protect themselves from oxygen levels that are either too high or too low, a new study finds.

SPARC's Scientific Communities Initiative awards grants worth a half-million dollars
SPARC's Scientific Communities Initiative, created to spur digital science publishing ventures based in academe, awards a half-million dollars in grants to Columbia University's Earthscape, the California Digital Library's eScholarship and MIT's CogNet.

Publicity about bowel cancer screening leads to reassurance not alarm
Publicity about cancer screening does not produce widespread alarm say researchers from the Imperial Cancer Research Fund in this week's BMJ.

Peering at a machine that pries DNA apart
Harvard researchers have created the first atomic-resolution image of a donut-shaped enzyme, or helicase, that unwinds the DNA double helix to expose its genetic letters for DNA replication.

Efforts to tackle obesity should begin in early childhood
Many British children are both overweight and obese before they start school, claim researchers from Glasgow and Bristol in this week's BMJ.

Suicide is higher among socially fragmented rather than deprived populations
People living in areas which have high levels of social fragmentation have higher rates of suicide than those living in poor areas, suggest researchers from Bristol.

Photodynamic therapy reduces risk of vision loss in some macular degeneration patients
A combined treatment of a light-sensitive medication and a laser light beamed into the eye appears to reduce the risk of vision loss in some patients with age-related macular degeneration (AMD), according to a Johns Hopkins-led study of more than 600 patients at 22 medical centers in North America and Europe.

Technology to prevent rail accidents should be implemented
Recommendations to introduce automatic train control were made 71 years ago and yet we are still waiting for it to be implemented, writes Professor Robert Cocks from the University of Hong Kong in this week's BMJ.
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