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Science News Archive September 2006 - Page 12


Page 12 of 15

Ethnicity and cancer susceptibility

Researchers have identified a genetic variation that affects cancer susceptibility in people of African descent, which may influence drug metabolism and response. The p53 tumor-suppressor protein is regulated by the ASPP family of proteins, with one form linked to increased cancer risk near the equator.

SourceLudwig Institute for Cancer Research·JournalNature Genetics·DateSep 10, 2006

'Allergy cells' can aggravate cancer and psoriasis

Researchers at Karolinska Institutet found that mast cells can contribute to diseases like psoriasis and cancer through a previously unknown activation mechanism. The study suggests that the CD30 protein stimulates mast cell release of proteins regulating inflammatory cell recruitment.

SourceKarolinska Institutet·JournalJournal of Clinical Investigation·DateSep 8, 2006

Researcher lights the way to better drug delivery

A Purdue University researcher has shed light on the details of one mechanism by which targeted drug therapy is achieved. The understanding of how to deliver and unload a cancer drug can be extrapolated to other diseased cells, including those involved in arthritis, multiple sclerosis, and Crohn's disease.

SourcePurdue University·JournalProceedings of the National Academy of Sciences·DateSep 8, 2006

Breast discomfort during hormone therapy may indicate increased risk for breast cancer

A recent study by researchers at UCLA and the University of Oslo suggests that breast discomfort during hormone therapy may be an early warning sign for breast cancer. The findings indicate that women experiencing breast pain or tenderness while on hormone replacement therapy should consult their healthcare provider promptly.

SourceUniversity of California - Los Angeles·JournalAnnals of Internal Medicine·DateSep 8, 2006

Study finds healthcare usage significantly altered after September 11 attacks

The study found that healthcare use slowed immediately after the attacks and later increased for certain conditions, including ulcers and skin infections. Distance from the World Trade Center also affected healthcare utilization, with declines observed among those closest to the site.

SourceEmory University Health Sciences Center·JournalBiosecurity and Bioterrorism Biodefense Strategy Practice and Science·DateSep 8, 2006

Oxford review of economic policy

The article highlights the need for effective regulation in markets, arguing that traditional command-and-control approaches are often ineffective. Dieter Helm suggests that market-based instruments like environmental taxes and trade permits can be more efficient and resistant to capture by vested interests.

SourceOxford University Press UK·JournalOxford Review of Economic Policy·DateSep 7, 2006

Diversity training fails to boost minorities into management

A new study by Harvard University researchers finds that diversity training programs have failed to increase minority representation in management positions. In contrast, programs that establish responsibility for diversity, such as equal opportunity staff positions or diversity task forces, have proven most effective.

SourceHarvard University·JournalAmerican Sociological Review·DateSep 7, 2006

Researchers identify key step in cocaine-induced heart enlargement, sudden death

Researchers identified a key step in cocaine-induced heart enlargement, where high concentrations of the drug lead to increased calcium within heart muscle cells, prompting the accumulation of primitive fetal proteins. This process can cause irregular heart rhythms and sudden death, affecting young people between 18-29 years old.

SourceUniversity of South Florida (USF Health)·JournalJournal of Cardiovascular Pharmacology·DateSep 7, 2006

PNP gets a pass to enter cells

Scientists have found a way to get purine nucleoside phosphorylase (PNP) into the cells of mice lacking the enzyme, which could lead to a treatment for individuals with PNP deficiency. The PTD-PNP fusion protein corrected most immune defects in Pnp-deficient mice.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 7, 2006

JCI table of contents: September 7, 2006

Scientists develop method to introduce purine nucleoside phosphorylase (PNP) enzyme into cells of mice with genetic defect, potentially leading to treatment for individuals lacking PNP. Research also sheds light on scavenger receptor BI's role in protecting against heart disease.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 7, 2006

Study of twins finds genetic link to fatigue

A recent study published in The British Journal of Psychiatry found that genetic inheritance is the main cause of unexplained disabling fatigue in children. The research, conducted at Cardiff University, suggests that familial influences play a significant role in both short- and prolonged-duration fatigue.

SourceCardiff University·JournalThe British Journal of Psychiatry·DateSep 7, 2006

From bubbles to capsules

Researchers developed a method to produce silicon dioxide nanocapsules using supercritical carbon dioxide, allowing for controlled delivery of liquids and materials. The resulting nanocapsules have diameters of less than 40 nanometers and walls that are about 2 nanometers wide.

SourceWiley·JournalAngewandte Chemie·DateSep 7, 2006

Pediatric neurosurgeons recommend banning children from ATVs

A 10-year review of ATV-related injuries reveals serious neurological injuries, inpatient rehabilitation, spinal cord injuries, and fatalities among children under 16. Pediatric neurosurgeons recommend banning children from ATVs and implementing mandatory helmet laws, instruction programs, and restricting public use.

SourceWashU Medicine·JournalJournal of Neurosurgery·DateSep 7, 2006