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Science News for April 15, 2003


JCI Table of Contents, April 15, 2003

Researchers investigate targeting pericytes and endothelial cells with kinase inhibitors to treat cancer and autoimmune diseases. PDX1 levels also play a crucial role in islet survival and diabetes development, while Factor H's anti-inflammatory properties are explored for hemolytic uremic syndrome treatment.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 15, 2003

Study questions interval for screening sigmoidoscopy

A study found that sigmoidoscopy screening significantly reduces distal colorectal cancer incidence, with a four-fold reduction in incidence for individuals who had ever had a screening. This reduction was sustained for more than 15 years, supporting longer screening intervals.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateApr 15, 2003

Fall, winter affect investment decisions, say researchers

Researchers found people affected by seasonal depression are more risk-averse when days are shorter in the fall but more willing to take risks as daylight lengthens in winter. This seasonal stock market fluctuation has a negative effect on autumn markets and a positive one during winter.

SourceUniversity of Toronto·JournalAmerican Economic Review·DateApr 15, 2003
SAMSUNG T9 Portable SSD 2TB

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Study reveals staph infection risk

A study published in the Journal of Infectious Diseases found that people undergoing hemodialysis are 257 times more likely to contract Staphylococcus aureus (ISA) than the general population. Those with HIV, solid organ transplant recipients, and heart disease patients are also at increased risk.

SourceMichigan State University·JournalThe Journal of Infectious Diseases·DateApr 15, 2003

Brauman to receive Gibbs Medal for achievements in chemistry

Dr. John Brauman is recognized for his groundbreaking research on ion dynamics in the gas phase, significantly altering our understanding of chemical reactivity. As a renowned chemist, Brauman joins an elite group of recipients who have gone on to win the Nobel Prize.

SourceStanford University·DateApr 15, 2003

Alcohol not always linked to risky choices, study shows

A study by Catherine Ortner found that intoxicated individuals may actually make more cautious decisions than sober counterparts in certain situations. The research suggests a complex relationship between alcohol consumption and decision-making processes.

SourceUniversity of Toronto·JournalAlcohol and Alcoholism·DateApr 15, 2003

Common thyroid cancer gene mutation found

Researchers at Johns Hopkins Medicine discovered a BRAF gene mutation in 68% of papillary thyroid cancers, which can be challenging to distinguish from benign conditions. This mutation causes continuous cell growth and division, leading to cancer.

SourceJohns Hopkins Medicine·JournalJNCI Journal of the National Cancer Institute·DateApr 15, 2003
Apple iPhone 17 Pro

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Duke heads $37 million trial of exercise for heart failure

A large-scale prospective trial will determine whether exercise can reduce mortality for patients with heart failure or any other disease. The study, led by Duke University, aims to find out if exercise has an effect on reducing hospitalizations among heart failure patients.

SourceDuke University Medical Center·DateApr 15, 2003

Cloned pigs differ from originals in looks and behavior

Researchers found that cloned pig behavior is not identical to the original animal's behavior. Cloning increases variability associated with some traits, making it difficult to predict the behavior of cloned animals.

SourceNorth Carolina State University·JournalBiology of Reproduction·DateApr 15, 2003

Increased heart mortality rates linked to lower state subsidies of uninsured in New Jersey

A study by University of Pennsylvania researchers found that a shift from rate-setting to market-based competition in New Jersey's healthcare system led to increased mortality rates among uninsured patients with acute myocardial infarctions. Mortality rates for insured patients declined at the same rate in both states.

SourceUniversity of Pennsylvania School of Medicine·JournalHealth Services Research·DateApr 15, 2003

Yellowstone wolves, grizzlies and moose 'dysfunctional' study says

A recent study by Wildlife Conservation Society researchers found that the reintroduction of wolves and grizzly bears in Yellowstone has led to ecosystem dysfunction. Female moose showed little reaction to predator sounds and smells, indicating a lack of ecological recovery.

SourceWildlife Conservation Society·JournalBiological Conservation·DateApr 15, 2003
Fluke 87V Industrial Digital Multimeter

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Other highlights of the April 16 JNCI

A study published in the Journal of the National Cancer Institute found that only 40% of patients with superficial bladder cancer had regular follow-up examinations, despite recommended guidelines. Patient characteristics such as age, ethnicity, and socioeconomic status were independently associated with low-intensity surveillance.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateApr 15, 2003

Nanometer-thick clay may yield groundbreaking technology

Purdue University researchers have developed an ultrathin film containing single layers of nanometer-thick clay particles. This breakthrough could lead to the creation of smart materials with unique properties, such as sensors that detect biological and chemical agents more quickly and stronger plastics.

SourcePurdue University·JournalLangmuir·DateApr 15, 2003

Estrogen patch compared to pill minimizes cardiovascular risk factor in postmenopausal women

A recent study published in the Journal of the American College of Cardiology found that oral estrogen therapy increased C-reactive protein (CRP) levels, while transdermal estrogen therapy had no effect. The researchers suggest that the route of administration may be a crucial factor in minimizing cardiovascular risks associated with e...

SourceUT Southwestern Medical Center·JournalJournal of the American College of Cardiology·DateApr 15, 2003
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