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Science News for May 11, 2007


HIV survival improves if patients stay in care

Researchers found that HIV patients with regular medical care have better survival rates compared to those without. The study, conducted on 2,619 men with HIV, showed that patients who visited their healthcare provider at least once each quarter had significantly lower risk of dying.

SourceBaylor College of Medicine·JournalClinical Infectious Diseases·DateMay 11, 2007

Inherited genes linked to toxicity of leukemia therapy

Researchers at St. Jude Children's Research Hospital found inherited genes associated with chemotherapy drug toxicity in children with acute lymphoblastic leukemia (ALL). The study identified specific polymorphisms linked to toxic side effects during treatment, which could enable individualized therapy and reduce toxicity.

SourceSt. Jude Children's Research Hospital·JournalBlood·DateMay 11, 2007
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Burroughs Wellcome Fund awards $14M to support physician-scientists

The Burroughs Wellcome Fund has awarded $14 million to support the first class of physician-scientists through the Career Awards for Medical Scientists program. The recipients will receive career development funding to advance their research and transition into independent academic careers.

SourceBurroughs Wellcome Fund·DateMay 11, 2007

High-dose anticlotting drug cuts heart attack, death risk in half

Pretreatment with high-dose clopidogrel (600 mg or more) reduces the risk of cardiac death or nonfatal heart attack by 50% during hospitalization and within 30 days after PCI. The study found no increase in major or minor bleeding, regardless of dose.

SourceSociety for Cardiovascular Angiography and Interventions·DateMay 11, 2007

UCLA researchers discover link between Parkinson's and narcolepsy

Parkinson's disease and narcolepsy share symptoms due to damage in the same small group of neurons. Researchers found that Parkinson's patients have severe loss of hypocretin cells, which may be reversible with treatments aimed at reversing this deficit.

SourceUniversity of California - Los Angeles·JournalBrain·DateMay 11, 2007
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Climate swings have brought great CO2 pulses up from the deep sea

A study found that climate swings brought great CO2 pulses up from the deep sea, contributing to further warming. The researchers discovered ancient carbon dioxide in sediment cores from the Pacific Ocean, indicating that massive amounts of CO2 were released into the atmosphere during ocean circulation changes.

SourceColumbia Climate School·JournalScience·DateMay 11, 2007

Study sheds light on Earth's CO2 cycles

A new study reveals two ancient CO2 pulses from the southern ocean around Antarctica, shedding light on Earth's CO2 cycles and their implications for climate change. The research tracked CO2 from the deep ocean to the upper ocean and atmosphere, providing insights into natural CO2 cycles and human-caused climate change.

SourceKent State University·JournalScience·DateMay 11, 2007

Bare-metal stents are better for some heart patients

For patients who need non-cardiac surgery a short time after an interventional heart procedure, bare metal stents provide a safer choice. Drug-eluting stents can lead to life-threatening cardiac complications in these patients, according to a study by Thomas Jefferson University Hospital.

SourceThomas Jefferson University·DateMay 11, 2007
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Online education program better source of information for patients

A study by the American Heart Association found that patients who used an online education program were more aware of treatment options and asked their doctors about care. The program provided personalized information in lay language, leading to improved patient knowledge and behavior.

SourceAmerican Heart Association·DateMay 11, 2007

DNA sieve -- Nanoscale pores can be tiny analysis labs

Researchers developed a technique to detect and sort different-sized polymer chains that pass through or block tiny pores in thin membranes. This non-destructive method measures individual biomolecules at the nanoscale level, enabling future applications in lab-on-a-chip molecular analyzers.

SourceNational Institute of Standards and Technology (NIST)·JournalProceedings of the National Academy of Sciences·DateMay 11, 2007

Nerves controlling muscles are best repaired with similar nerves

A team of surgeons at Washington University School of Medicine has found that using motor nerves to repair damaged muscles yields better results than traditional sensory nerve grafts. The study used a novel approach, where intact motor nerves were used as grafts in rat models, resulting in significant improvements in muscle function.

SourceWashU Medicine·JournalMicrosurgery·DateMay 11, 2007

Researchers create model of cancer-preventing enzyme, study how it works

Scientists created a model of proline dehydrogenase, an enzyme that enables the creation of superoxide, a reactive oxygen species involved in cell death and cancer prevention. The human form of this enzyme is difficult to work with, so researchers studied its bacterial counterpart, Thermus thermophilus.

SourceUniversity of Missouri-Columbia·JournalJournal of Biological Chemistry·DateMay 11, 2007

Study revises dynamin's role in nerve cell function

Researchers at Weill Cornell Medical College and Yale University discovered that dynamin 1 is not essential to all synaptic transmission, but rather acts more subtly during moments of high activity. This finding has significant implications for understanding neurological injury and disease.

SourceNewYork-Presbyterian·JournalScience·DateMay 11, 2007
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Debate focuses on door-to-balloon time in heart attack treatment

Experts disagree on the criticality of a 90-minute door-to-balloon time in heart attack treatment. Dr. Eric R. Bates believes that timely balloon inflation is crucial for better outcomes, while Dr. Timothy D. Henry argues that an arbitrary deadline may be counterproductive in some cases.

SourceSociety for Cardiovascular Angiography and Interventions·DateMay 11, 2007

Slowing the racing heart

Scientists have found an enzyme called Pak 1 that acts on the heart's pacemaker to slow the rapid beating of the heart's 'fight-or-flight' reaction to adrenaline. This discovery opens up new avenues for diagnosis, drug design and treatment of common heart diseases.

SourceUniversity of Illinois Chicago·DateMay 11, 2007

States' spending may help keep childless seniors independent

Researchers found that doubling state spending on these services reduces the risk of nursing home admission among childless seniors by 35 percent. States' varying levels of commitment to providing these services have been linked to different outcomes for seniors with and without family support.

SourceUniversity of Illinois Chicago·DateMay 11, 2007
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.