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Science News for May 26, 2009


Activated stem cells in damaged lungs could be first step toward cancer

Researchers have discovered that activated stem cells in damaged lungs may lead to rapidly dividing cells that can develop into lung cancer. This finding is significant because it highlights the role of stem cell activation in lung cancer susceptibility, particularly among cigarette smokers.

SourceDuke University Medical Center·JournalProceedings of the National Academy of Sciences·DateMay 26, 2009

Spring agricultural fires have large impact on melting Arctic

Scientists from the POLARCAT campaign found that agricultural fires in Russia, Kazakhstan, China, and other countries are releasing large amounts of soot into the atmosphere, accelerating melting of snow and ice. This report highlights the importance of controlling these emissions as a supplemental strategy to reduce carbon dioxide.

SourceUniversity of New Hampshire·DateMay 26, 2009
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

What is the function of lymph nodes?

A new study found that lymph nodes are not necessary for the immune system to respond to infections. Instead, the liver can serve as a surrogate structure for T-cell activation. This discovery suggests an alternative role for the liver and may explain why patients receiving a liver transplant sometimes inherit the donor's allergies.

SourcePLOS·JournalPLOS Biology·DateMay 26, 2009

M. D. Anderson study finds dramatic increase in metastatic colon cancer survival

Researchers at M.D. Anderson Cancer Center found a significant increase in median overall survival from 8 to 30 months for patients with advanced disease, and a projected five-year survival rate of over 30 percent. The study attributes the improvements to better surgical interventions and new chemotherapeutic agents.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJournal of Clinical Oncology·DateMay 26, 2009
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Arthritis drug might prove effective in fighting the flu, study suggests

Researchers at the University of Maryland School of Medicine found that Abatacept reduces severe illness and death in mice exposed to Influenza A virus by tempering the immune response. The treatment approach also improves survival rates for mice infected with a lethal dose of influenza virus.

SourceUniversity of Maryland Medical Center·JournalThe Journal of Immunology·DateMay 26, 2009

Notre Dame researchers describe new tool for evaluating 'managed relocations'

Notre Dame researchers have developed a new tool to assess the effectiveness of 'managed relocation' strategies for preserving species threatened by climate change. The tool uses multi-disciplinary criteria to score proposed relocations, considering factors such as ecosystem impact and social importance.

SourceUniversity of Notre Dame·JournalProceedings of the National Academy of Sciences·DateMay 26, 2009

Shellfish face an uncertain future in a high CO2 world

Scientists have discovered that high CO2 levels are causing ocean acidification, leading to reduced shell growth and calcification in shellfish. Eastern oysters are particularly susceptible, with a 16% decrease in shell area and 42% reduction in calcium content.

SourcePLOS·JournalPLOS ONE·DateMay 26, 2009
Apple iPhone 17 Pro

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

New therapy substitutes missing protein in those with muscular dystrophy

Researchers have discovered a new therapy that substitutes the missing protein dystrophin to repair weakened muscle tissue in mouse models with Duchenne muscular dystrophy. The TAT-utrophin-based protein approach addresses the cause of the disease without gene replacement or stem cell issues, offering a potential treatment option.

SourceUniversity of Minnesota·JournalPLOS Medicine·DateMay 26, 2009

Intervention helps reduce pain and depression

A combined pharmacological and behavioral intervention improved depression and pain in patients with musculoskeletal pain and co-existing depression. The intervention significantly reduced symptoms of both conditions at 12 months.

SourceJAMA Network·JournalJAMA·DateMay 26, 2009

Scientists reaching consensus on how brain processes speech

Scientists have confirmed a unified theory about how the brain processes speech and language, suggesting that two parallel pathways process complex auditory signals. The findings, published in Nature Neuroscience, provide insight into disorders such as autism and schizophrenia, and may lead to better treatment options.

SourceGeorgetown University Medical Center·JournalNature Neuroscience·DateMay 26, 2009
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

JAMA study: Effectively managing pain with depression

Researchers developed a strategy to improve both depression and pain management by closely monitoring antidepressant therapy and providing pain self-management training. The study found that this approach led to substantial improvements in both conditions, with benefits lasting six months after treatment was completed.

SourceIndiana University·JournalJAMA·DateMay 26, 2009

John P. Cogswell, Ph.D., receives 2009 Alzheimer Award

John P. Cogswell, PhD, has been awarded the 2009 Alzheimer Award for his work on identifying microRNA changes in Alzheimer's disease brain and CSF, which yields putative biomarkers and insights into disease pathways. His research highlights the potential of microRNAs to aid clinical diagnosis.

SourceIOS Press·DateMay 26, 2009
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.

Toward cheap underwater sensor nets

Researchers at UC San Diego are building low-cost, low-power modems for short-range underwater networking, enabling higher sampling rates and more frequent data collection. The project aims to create a network of underwater sensors that can provide real-time environmental data, revolutionizing the way we understand our natural world.

SourceUniversity of California - San Diego·DateMay 26, 2009

Scientists find city rats are loyal to their 'hoods

A study found that rats in Baltimore form distinct neighborhoods, with each community spanning little more than an average alley. Rats rarely migrate, but neighborhood eradication efforts may backfire by encouraging rodents to repopulate other areas and spread disease.

SourceWiley·JournalMolecular Ecology·DateMay 26, 2009

Predicting higher risk for prostate cancer diagnosis

Research reveals that HGPIN carries a high predictive value for future diagnosis of prostate cancer, with a 41.8% risk identified in patients. The study recommends delaying first repeat biopsies at low PSA ranges but shorter intervals for intermediate and higher PSA ranges.

SourceBMC (BioMed Central)·JournalBMC Urology·DateMay 26, 2009
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

JCI table of contents: May 26, 2009

Researchers have identified the protein ILK as promoting growth of aggressive rhabdomyosarcoma cells and suppressing ERMS cell growth. A therapy targeting ILK may provide a tailored approach for treating the lethal form of RMS, ARMS.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMay 26, 2009

Diabetes drug shows promise against multiple sclerosis

Researchers found that a diabetes drug, pioglitazone, significantly reduced gray matter loss in patients with relapsing remitting multiple sclerosis. The treatment showed no adverse reactions and was well-tolerated.

SourceUniversity of Illinois Chicago·JournalJournal of Neuroimmunology·DateMay 26, 2009

NASA uses satellite to unearth innovation in crop forecasting

By leveraging the Advanced Microwave Scanning Radiometer for EOS sensor on NASA's Aqua satellite, researchers can estimate soil moisture levels with improved accuracy, leading to more precise crop forecasts. This innovation addresses the pressing issue of global food scarcity and its impact on millions of poor people.

SourceNASA/Goddard Space Flight Center·DateMay 26, 2009

In a rare disorder, a familiar protein disrupts gene function

A recent study in PLoS Biology has identified the crucial role of cohesin proteins in human gene expression, shedding light on Cornelia de Lange syndrome. The research found that dysregulation of cohesin affects hundreds of genes, leading to unique gene expression profiles.

SourcePLOS·JournalPLOS Biology·DateMay 26, 2009
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Zebrafish provide a model for cancerous melanoma in humans

Scientists use zebrafish to investigate the role of RAS mutations in melanoma formation and progression. The research found that altering signaling pathways can reduce the effects of RAS mutations, providing a potential therapeutic approach.

SourceThe Company of Biologists·JournalDisease Models & Mechanisms·DateMay 26, 2009

Sahlgrenska Academy to lead major European project on obesity

The NeuroFAST project will investigate the neural mechanisms underlying food intake and addiction, with a focus on the hypothalamus. The research team, led by Professor Suzanne Dickson at Sahlgrenska Academy, aims to create a comprehensive picture of obesity and its causes.

SourceUniversity of Gothenburg·DateMay 26, 2009

Strict maternal feeding practices not linked to child weight gain

A new study found that controlling maternal feeding practices are not directly linked to future child weight gain. Instead, they may be a response to concerns over the child's increasing weight. The researchers suggest that some degree of control may actually help certain children maintain their weight.

SourceLifespan·JournalObesity·DateMay 26, 2009

Study compares NFL players' health to that of other healthy young men

A study comparing NFL players' health to that of other healthy young men found lower incidence of impaired fasting glucose and similar prevalence of abnormal cholesterol levels. However, NFL players had a significantly higher prevalence of high blood pressure and prehypertension compared to the general population.

SourceJAMA Network·JournalJAMA·DateMay 26, 2009
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Jeepers creepers: Climate change threatens endangered honeycreepers

Honeycreepers' high-altitude refuges are vulnerable to disease invasion and habitat loss as temperatures rise, putting species at risk of extinction. The USGS predicts that climate change will displace these refuge areas, forcing birds to migrate into higher disease transmission zones.

SourceU.S. Geological Survey·JournalJournal of Avian Medicine and Surgery·DateMay 26, 2009

In rare disease, a familiar protein disrupts gene function

Scientists discovered that a protein complex called cohesin plays an important role in regulating genes in humans, particularly in the rare genetic disease Cornelia de Lange syndrome. The study identified hundreds of genes that were dysregulated compared to controls, and also detected gene expression profiles unique to CdLS.

SourceChildren's Hospital of Philadelphia·JournalPLOS Biology·DateMay 26, 2009

Pediatrician creates easier way to identify kids' high BP

A simplified chart created by a pediatrician can help identify children with high blood pressure, improving diagnosis rates. The revised chart uses age and gender to determine abnormal readings, reducing the need for height percentile verification.

SourceCase Western Reserve University·JournalPEDIATRICS·DateMay 26, 2009

National study finds youth baseball-related injuries down 25 percent

A nationwide study found a significant decrease in baseball-related injuries among children and adolescents, with emergency department treatments dropping by 25%. The most common injuries were soft tissue injuries, followed by facial and upper extremity injuries, highlighting the importance of injury prevention efforts.

SourceNationwide Children's Hospital·JournalPEDIATRICS·DateMay 26, 2009
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

BUSM researchers find no adjustment method fully resolves confounding by indication

Researchers at Boston University School of Medicine found that conventional methods to adjust for confounding, such as restriction and multivariable regression, leave residual confounding because of unmeasured factors. Propensity scores and instrumental variable methods have limitations in resolving confounding by indication.

SourceBoston University School of Medicine·JournalJournal of Clinical Epidemiology·DateMay 26, 2009

NEJM study finds drug-eluting stents more effective than bare-metal stents in heart attack patients

A landmark study published in NEJM found that paclitaxel-eluting stents significantly reduce target lesion revascularization and binary angiographic restenosis rates compared to bare-metal stents. The study showed a lower rate of ischemia-driven target-lesion revascularization at 12 months with the use of paclitaxel-eluting stents.

SourceNew York- Presbyterian Hospital/Columbia University Medical Center·JournalNew England Journal of Medicine·DateMay 26, 2009

Carbohydrate restriction may slow prostate tumor growth

A recent study found that carbohydrate restriction without weight loss can slow prostate tumor growth by lowering serum insulin levels. The researchers believe that this mechanism is key to fighting prostate cancer growth and potentially improving patient outcomes.

SourceDuke University Medical Center·JournalCancer Prevention Research·DateMay 26, 2009
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Researchers gain ground in efforts to fight parasite infection

UT Southwestern researchers accelerate efforts to eradicate worm infections by targeting a biochemical system that controls development and reproduction in parasitic nematodes. The compound dafachronic acid sends signals for the worms to mature from infective to feeding stages, making hosts sick.

SourceUT Southwestern Medical Center·JournalProceedings of the National Academy of Sciences·DateMay 26, 2009

JNCI May 26 issue tip sheet

Researchers discovered that CIP2A expression is associated with reduced overall survival in gastric cancer patients, as well as increased proliferation and anchorage-independent growth. Meanwhile, a RasGAP-derived peptide has been shown to improve responses to chemotherapy in mouse models of colon cancer.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateMay 26, 2009
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Viruses are sneakier than we thought

Researchers found that Kaposi's sarcoma-associated herpesvirus uses polyadenylation to block normal gene expression in cells. The virus' SOX protein aberrantly lengthens mRNA poly(A) tails, sending a signal to the cell that its messages are wrong and holding them back.

SourcePLOS·JournalPLOS Biology·DateMay 26, 2009

Did the North Atlantic fisheries collapse due to fisheries-induced evolution?

Scientists at the University of Iceland and Marine Research Institute report a significant difference in Darwinian fitness between shallow-water and deep-water adapted cod. The study found that intense habitat-specific fishing pressure led to rapid elimination of shallow-water fish, drastic effects on populations and fisheries.

SourcePLOS·JournalPLOS ONE·DateMay 26, 2009
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Legal loophole exposes Canadians to drug advertising banned in US: UBC research

A legal loophole in Canada's advertising regulations has exposed Canadians to more than $90 million worth of drug ads, including those for life-threatening medications. The study found that four out of eight heavily advertised drugs had black box warnings and five had been subject to Health Canada safety advisories.

SourceUniversity of British Columbia·JournalPLOS ONE·DateMay 26, 2009

Less toxic drug prolongs survival in metastatic breast cancer

Research from Northwestern University found Abraxane effectively prevents metastatic breast cancer progression and has fewer side effects compared to Taxotere. The study prolonged progression-free survival by almost seven months.

SourceNorthwestern University·JournalJournal of Clinical Oncology·DateMay 26, 2009
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Lifelong cancer risk for patients treated for childhood cancer

A new study found that childhood cancer survivors have a significantly increased risk of developing second primary cancers throughout their lives. The research, published in the Journal of the National Cancer Institute, analyzed data from 47,697 people diagnosed with cancer before age 20 and found a higher incidence rate of new primary...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateMay 26, 2009
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Lessons from the vaccine-autism wars

The vaccine-autism debate persists despite scientific consensus, fueled by internet misinformation and declining public trust. Pediatrician Paul Offit's efforts to set the record straight have been hindered by celebrity anti-vaccine advocates like Jenny McCarthy.

SourcePLOS·JournalPLOS Biology·DateMay 26, 2009

NASA/University team develops new method to find alien oceans

A NASA/University team developed a method to indicate the presence of oceans on extrasolar Earth-like worlds by analyzing how Earth's light changes as it rotates. The technique relies on observing blue color changes caused by oceans, which appear bluer than continents.

SourceNASA/Goddard Space Flight Center·DateMay 26, 2009

A hidden drip, drip, drip beneath Earth's surface

Researchers found a large cylindrical blob of cold material, known as a lithospheric drip, beneath the Great Basin in central Nevada. The finding provides new insights into fine-scale mantle convection processes and their connections to volcanism and mountain-building.

SourceU.S. National Science Foundation·JournalNature Geoscience·DateMay 26, 2009

Well water should be tested annually to reduce health risks to children

The American Academy of Pediatrics recommends annual private well testing for nitrate and microorganisms, particularly for infants under three months. Children are vulnerable to waterborne illnesses that can come from contaminated wells, and proper care is essential to prevent contamination.

SourceNIH/National Institute of Environmental Health Sciences·JournalPEDIATRICS·DateMay 26, 2009
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

The evolution of gene regulation

Researchers Ulrich Gerland and Terence Hwa discovered two opposing principles guiding gene regulation in microbes: 'use-it-or-lose-it' and 'wear-and-tear'. These mechanisms adapt to environmental changes, with the latter mitigating detrimental effects of constant use.

SourceLudwig-Maximilians-Universität München·JournalProceedings of the National Academy of Sciences·DateMay 26, 2009

New way of gauging professional behavior in medical students

A new study suggests a score-based system, called the Conscientiousness Index, can detect behaviours that need early investigation and provide targeted support. The index measures diligence in day-to-day behaviour and is believed to contribute to improving doctors' performance after qualification.

SourceDurham University·JournalAcademic Medicine·DateMay 26, 2009

Green tea extract shows promise in leukemia trials

Researchers at Mayo Clinic have found that patients with chronic lymphocytic leukemia (CLL) can tolerate high doses of green tea extract EGCG, leading to a significant reduction in lymphocyte count. The study also showed that many participants experienced regression of CLL symptoms, particularly those with enlarged lymph nodes.

SourceMayo Clinic·JournalJournal of Clinical Oncology·DateMay 26, 2009

Capturing the birth of a synapse

Researchers from the University of Oregon and University of California, Davis, have identified a locking mechanism that allows neurons to form synapses, essential for transmitting information. This discovery sheds light on autism development, a brain disorder affecting social and communication abilities.

SourceUniversity of Oregon·JournalNeural Development·DateMay 26, 2009
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.

Getting to the root of science in a nutty way

Dr. Leo Lombardini is conducting a pioneering study on pecan roots to optimize tree maintenance and nutrient application. His research aims to discover ways to produce higher-quality, more nutritious nuts in an efficient and sustainable manner.

SourceTexas A&M AgriLife Communications·DateMay 26, 2009

New research helps explain how connexin hemichannels are kept closed

A new study advances our understanding of connexin hemichannel closure by elucidating the loop gating mechanism. The research also sheds light on the conformational changes occurring within the loop gate, providing a clearer picture of how these channels are kept closed.

SourceRockefeller University Press·JournalJournal of General Physiology·DateMay 26, 2009
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Oldest evidence of leprosy found in India

A 4000-year-old skeleton from India reveals the earliest archaeological evidence of human infection with Mycobacterium leprae, shedding light on prehistoric transmission routes and challenges popular misconceptions about the disease. The findings support a hypothesis that leprosy spread between Africa and Asia during urbanization periods.

SourcePLOS·JournalPLOS ONE·DateMay 26, 2009