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Science News Archive August 2001 - Page 2


Page 2 of 8

New dinosaur expert publishes in Nature

Dr. Peter Makovicky's discovery sheds new light on the feeding behavior of ornithomimid dinosaurs, revealing a possible adaptation to filter-feed tiny invertebrates and particles from water and sediment. The find is significant as it provides evidence for the unique beak structure found in two well-preserved specimens.

SourceField Museum·JournalNature·DateAug 29, 2001

T cell responses in aplastic anemia

Research in aplastic anemia reveals crucial insights into immune system dysfunction and potential therapeutic targets. Patients with aplastic anemia display impaired T cell responses, indicating a critical link between immunodeficiency and disease progression.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 29, 2001

Plastic tube may help treat paralysis

A team of researchers has developed a novel treatment for spinal cord injuries using a plastic tube filled with chemicals that promote nerve growth. The tube, designed to mimic the flexibility of the spinal cord, provides a pathway for neurons to grow and potentially reconnect severed nerves.

Too much soy could lead to kidney stones

Researchers found that store-bought tofu, soy cheese, and soy drinks contain significant levels of oxalate, which can bind with calcium in the kidneys to form kidney stones. The American Dietetic Association recommends limiting oxalate intake to 10 milligrams per serving for patients with a history of kidney stones.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateAug 28, 2001

New bar coding system helps decode drug discovery

A new bar coding system developed by Purdue University chemists can quickly identify the most biologically active compounds among thousands of candidates. The method uses standard spectrometers and reduces the laborious process to a few hours, cutting down time needed to identify active compounds to zero.

SourcePurdue University·JournalJournal of the American Chemical Society·DateAug 28, 2001

Does chromosome 4 hold the secret to human longevity?

A genome-wide study of 308 long-lived individuals revealed a significant correlation between allele sharing on chromosome 4 and longevity. This suggests that the region may contain genes influencing human lifespan, with potential applications in preventing age-associated diseases such as heart disease and Alzheimer's disease.

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateAug 27, 2001

First-ever published study of moderate to severe Alzheimer's disease patients taking Aricept (r) shows significant treatment benefits in cognition, daily living activities and behavior

A 24-week study found consistent benefits of ARICEPT in patient function, cognition, behavior, and activities of daily living. The medication showed statistically significant overall improvement vs. placebo in behavioral disturbances associated with Alzheimer's disease.

SourcePorter Novelli·JournalNeurology·DateAug 27, 2001

Researchers building a trap for chromium six

Virginia Tech researchers have created a Selective Ion Trap (SIT) device that can capture and preserve chromium six in the field, enabling faster and more accurate analysis of contaminated groundwater. The device uses a plastic membrane to trap chromium six without allowing it to transform into less reactive forms.

Clay reduces permeability of biomedical polymer

Scientists at Penn State have developed a new method to reduce the permeability of biomedical polymers using silicate clay, achieving a significant improvement in air and water resistance. The clay is mixed with the polymer in a common solvent, resulting in a barrier that effectively blocks many paths for air and water migration.