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Science News Archive 2004 - Page 121


Page 121 of 135

Evolution caught in the act

A research team at the University of Michigan and the University of Texas describes how a resourceful bacterium developed an entirely new way to make disulfide bonds. This breakthrough could have significant implications for disease states like Alzheimer's and cystic fibrosis, as well as biotech applications.

SourceUniversity of Michigan·JournalScience·DateFeb 19, 2004

UK needs more seafarers

A study by Cardiff University predicts a current annual shortfall of UK ex-seafarers as much as 112. This shortage could lead to higher wage bills for shipping companies, reduced quality of employment, and less incentive to train cadets. The shipping industry has traditionally supplied skilled labor to shore-based industries.

Shark guide probes uncharted waters

A new guide, developed by NOAA Fisheries and Rhode Island Sea Grant, aims to increase species-specific identifications without associated mortality. The guide focuses on external characteristics and uses photographs to aid in identification, helping users distinguish among 44 highly migratory shark species.

Research examines treatment goals for acromegaly patients

Researchers found that achieving basal growth hormone levels of less than 2.5 µg/liter and glucose-suppressed GH levels of less than one µg/liter may not minimize cardiovascular risks in acromegaly patients. Instead, these patients are at increased risk for conditions like hypertension, diabetes, and osteoarthritis.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateFeb 18, 2004

New method for converting nitrogen to ammonia

A team of Cornell University researchers has successfully converted nitrogen to ammonia in a laboratory setting, molecule by molecule, using a zirconium metal complex. The process achieves complete fixation at lower temperatures than existing industrial methods, which require high pressures.

SourceCornell University·JournalNature·DateFeb 18, 2004

What are your odds of surviving into your hundreds?

A new study found that people with short variants of the APOB gene region have significantly lower total and low-density lipoprotein cholesterol levels in their blood. This association may contribute to a protective role of these variants in younger adults, while being detrimental to longevity in older individuals.

SourceBMC (BioMed Central)·JournalBMC Medical Genetics·DateFeb 18, 2004

Clinical trial of new TB vaccine begins

A new TB vaccine, rBCG30, is being tested in a human clinical trial to assess its safety and immune response. The vaccine, developed by Dr. Marcus Horwitz and his team at UCLA, has shown promise in preclinical trials and could potentially reduce the TB disease burden worldwide.

SourceAeras·DateFeb 17, 2004

The future of drug development

Researchers Hubbard and Love propose a new system for funding drug development, separating R&D and product markets. This could lead to greater openness in drug research, reduced prices, and expanded access to new medicines.

SourcePLOS·JournalPLOS Biology·DateFeb 17, 2004

American Thoracic Society Journal news tips for February 2004 (second issue)

A study of influenza vaccination in children with asthma found no significant reduction in asthma exacerbations caused by the flu. In contrast, a separate study showed that maternal and personal smoking synergize to increase airflow limitation in offspring, increasing the risk of Chronic Obstruction Pulmonary Disease (COPD).

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 17, 2004

DHEA boosts growth rate of human neural stem cells

Researchers at the University of Wisconsin-Madison have found that DHEA significantly increases the division of human neural stem cells, leading to increased neurogenesis. The study's findings provide direct evidence of DHEA's effects on critical human cells, shedding light on the hormone's potential benefits and risks.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateFeb 17, 2004

Point well taken

Researchers found that referential gesturing improves identification of targets and reduces verbal cues when participants can see each other. The study published in Psychological Science shows that pointing facilitates the use of verbal descriptions by focusing the audience's gaze on a specific subregion of shared visual space.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 17, 2004

AGU Journal Highlights - 17 February 2004

Scientists found a possible link between increasing greenhouse gases and European heat waves, while also studying the transfer of energy from earthquakes through Earth's formations. Additionally, research revealed the Amazon River's strong impact on tropical Atlantic carbon levels and new insights into Martian drainage basins that may ...

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateFeb 17, 2004

Hormone found to protect bones

A Baylor College of Medicine study reveals that the hormone amylin inhibits bone loss and resorption. Mice without amylin have less bone mass due to increased bone destruction, suggesting a potential therapeutic avenue for preventing osteoporosis in Type 1 diabetes patients.

SourceBaylor College of Medicine·JournalJournal of Cell Biology·DateFeb 16, 2004