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Science News for March 26, 2007


Drug/intervention combinations offer benefit in severe CVD

Researchers have identified promising new drug combinations that can improve survival rates among patients with severe heart disease. Studies show that using imaging technologies like PET-guided therapy can also help doctors make more accurate decisions about therapies for these high-risk patients.

SourceAmerican College of Cardiology·DateMar 26, 2007
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.

Ultrathin films deliver DNA as possible gene therapy tool

Researchers at the University of Wisconsin-Madison have created ultrathin films composed of DNA and water-soluble polymers that allow controlled release of DNA from surfaces. These films could be used to deliver genetic material for gene therapy, potentially treating conditions such as cardiovascular disease by preventing smooth muscle...

SourceUniversity of Wisconsin-Madison·DateMar 26, 2007

Toddlers engage in 'emotional eavesdropping' to guide their behavior

Researchers found that 18-month-old toddlers listen and watch emotional reactions directed by one adult to another, then use this emotional information to shape their own behavior. The study indicates infants understand other people's emotional states at a very young age.

SourceUniversity of Washington·JournalChild Development·DateMar 26, 2007

Place more than race tied to heart disease risk

New research suggests that living in rural areas can lower the risk of heart disease, possibly due to easier access to fresh produce and outdoor exercise. Meanwhile, urban residents are more motivated to get healthy but lack knowledge about heart-healthy eating.

SourceTemple University·DateMar 26, 2007
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Too much water, fertilizer bad for plant diversity

A UC Irvine scientist has discovered that excess nutrients in an ecosystem can lead to a decrease in plant species diversity while increasing the productivity of a few selected species. This finding provides a new explanation for why polluted ecosystems often contain limited numbers of plant species.

SourceUniversity of California - Irvine·JournalNature·DateMar 26, 2007

U of M researchers study homeless people's attitudes and concerns about death and end-of-life care

Homeless individuals express strong concerns about the type of care they would receive when dying and after death. They advocate for increased advance care planning and compassionate treatment by healthcare providers. The study emphasizes the need to address end-of-life care as a priority for this underserved population.

SourceUniversity of Minnesota·JournalJournal of General Internal Medicine·DateMar 26, 2007

Battlefield and terrorist explosions pose new health risks

Scientists found that brief high-level exposures to nitrogen dioxide can cause rapid lung injury, including breathing rate inhibition, lung edema, and acute lung damage. Researchers studied laboratory rats exposed to varying concentrations of the toxic gas for five minutes, revealing significant health risks.

SourceAmerican Chemical Society·DateMar 26, 2007

Light-based probe 'sees' early cancers in first tests on human tissue

A new light-based probe built by researchers at Duke University has successfully detected the earliest signs of cancer in cells lining internal organs. The device uses changes in laser light scattering to identify pre-cancerous conditions, offering a promising alternative for early diagnosis and treatment.

SourceDuke University·JournalGastrointestinal Endoscopy·DateMar 26, 2007
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Researchers find a new way to read nanoscale vibrations

Cornell researchers have found a simple solution to measuring nanoscale vibrations by tapping with an atomic force microscope (AFM), allowing for the detection and identification of bacteria, viruses, and other organic molecules. The new method uses probes similar to those in AFMs to measure vibrations in nanomechanical oscillators.

SourceCornell University·JournalJournal of Applied Physics·DateMar 26, 2007

Bacterial response to oxidation studied as toxin barometer

Researchers develop a bacterial biosensor prototype to detect oxidative stress, which can cause brain tissue damage. The sensor uses potassium release in response to toxins, correlating with cell damage, offering a potential early warning system for public health threats.

SourceVirginia Tech·DateMar 26, 2007

New blood thinner may work without bleeding risk

A new thrombin-receptor antagonist (TRA) has shown significant reduction in serious cardiovascular events, mainly heart attacks, with no increase in bleeding risks in a high-risk patient population. The study found a 46% lowering in serious cardiovascular events, an early and strong efficacy signal for this novel antiplatelet compound.

SourceUniversity of Kentucky·DateMar 26, 2007
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.

Computerized reminders boost mammography screening rates

A Mayo Clinic study found that using computerized reminders can increase mammography screening rates, with 64.3% of women in the intervention group getting a yearly mammogram compared to 55.3% in the control group. The program has expanded beyond mammograms to include other preventive services.

SourceMayo Clinic·JournalArchives of Internal Medicine·DateMar 26, 2007
Apple iPhone 17 Pro

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

Pairing medical therapy with coronary intervention fails to reduce heart disease deaths

A study published in the New England Journal of Medicine found that pairing percutaneous coronary interventions (PCI) with optimal medical therapy (OMT) is no more effective than OMT alone in preventing heart attacks and other cardiac events. The study showed similar rates of death, heart attack, or stroke between patients who received...

SourceAmerican College of Cardiology·JournalNew England Journal of Medicine·DateMar 26, 2007

Embargoed March/April Annals of Family Medicine tip sheet

A primary care health network in Fort Worth, Texas, took responsibility for 3,700 Hurricane Katrina evacuees, providing medical care for nearly half of them. The network prevented its emergency department from being overwhelmed by creating a triage center and referring evacuees to primary care clinics. The authors reflect on valuable l...

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateMar 26, 2007

Drug and procedural interventions offer better quality of life

Research on silent myocardial ischemia shows that anti-anginal therapy, combined with risk factor control, improves outcomes and preserves left ventricular function. Additionally, faster door-to-balloon time for STEMI patients leads to reduced healthcare costs, heart attack rates, and hospital stays.

SourceAmerican College of Cardiology·DateMar 26, 2007

Researchers figure out what makes a simple biological clock tick

An interdisciplinary team of researchers analyzed the simplest known biological clock and found that the protein KaiC, combined with KaiA and KaiB, creates a complex system to regulate biochemical processes. The study reveals that the proteins form a dynamic mixture of complexes at different stages of their cycles.

SourceVanderbilt University·JournalPLOS Biology·DateMar 26, 2007

Study shows many mental health needs go unmet

A large-scale assessment of the general population found that nearly 30% need mental health care, with major depression and alcohol dependence being the top concerns. The study suggests that societal pressures, stigma, and lack of comprehensive insurance coverage are significant barriers to accessing care.

SourceMedical College of Georgia at Augusta University·JournalPsychiatric Services·DateMar 26, 2007
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.

General physicals prompt needed cancer screenings

A new study published in Archives of Internal Medicine found that patients who received regular preventive health exams were more likely to get recommended cancer screenings. The study showed that colon cancer screenings and prostate-specific antigen tests increased by three times in the checkup group compared to those without a checkup.

SourceUniversity of California - Davis·JournalArchives of Internal Medicine·DateMar 26, 2007

Combination HDL/LDL therapy has no effect on plaque build-up

Researchers found that combining torcetrapib with atorvastatin did not slow the progression of atherosclerosis, contrary to expectations. The study also noted significant increases in HDL-C and decreases in LDL-C levels.

SourceAmerican College of Cardiology·JournalNew England Journal of Medicine·DateMar 26, 2007

Global warming forecasts creation, loss of climate zones

A new study predicts the disappearance of several existing climates by 2100 due to global warming, with novel climate zones emerging on up to 39% of the world's land surface area. The models also foresee significant impacts on ecosystems and biodiversity, highlighting the importance of understanding and coping with climate change.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateMar 26, 2007
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.

Migratory birds: Innocent scapegoats for the dispersal of the H5N1 virus

A review article argues that migratory birds are not the primary source of H5N1 virus dispersal. Human commercial activities, particularly poultry trade, are the major factors behind the global spread of the virus. The study suggests that strict health control and better animal welfare measures can help prevent disease transmission.

SourceBlackwell Publishing Ltd.·JournalIbis·DateMar 26, 2007

Removing a hydrogen fuel-cell roadblock

The team is developing materials with similar properties to palladium, but cheaper and more readily available, to improve the efficiency of hydrogen fuel cells. The goal is to find a substitute for platinum, which is currently used as a catalyst in PEMs containing platinum.

SourceDOE/Ames National Laboratory·DateMar 26, 2007

Immune response to cancer stem cells may dictate cancer's course

Researchers found that immune response to SOX2 protein protects against myeloma development in patients with monoclonal gammopathy of undetermined significance. This discovery suggests targeting cancer stem cells may be key to preventing or treating myeloma.

SourceRockefeller University·JournalJournal of Experimental Medicine·DateMar 26, 2007

Clinical trial for diabetic macular edema

A Phase 2 clinical trial for ranibizumab is enrolling patients with diabetic macular edema to assess its long-term safety and effectiveness. The trial aims to investigate the use of ranibizumab in combination with laser photocoagulation for treating DME.

SourceJDRF·DateMar 26, 2007
Meta Quest 3 512GB

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

Studies highlight advances in diagnosis, medical therapy

Researchers present three studies highlighting advances in clinical cardiology, including a new drug-exercise combination that improves image quality and reduces side effects. The studies also explore the best medical and interventional treatment for patients with acute coronary syndromes.

SourceAmerican College of Cardiology·DateMar 26, 2007

Infants learn from observing others' emotional behavior

Researchers found that infants learned to avoid copying actions when an adult expressed anger towards them, but eagerly copied when the adult was neutral. Infants also adjusted their behavior based on whether they could see the angry adult after they left.

SourceSociety for Research in Child Development·JournalChild Development·DateMar 26, 2007

New metal crystals, formed on a cotton assembly line

Researchers have developed a new method to form tiny, uniform metal crystals with novel chemical and physical properties. These crystals, grown on acid-treated cellulose fibers from cotton, show promise as components in biosensors, biological imaging, drug delivery, and catalytic converters.

SourceDOE/Pacific Northwest National Laboratory·DateMar 26, 2007
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.

Children with attention deficit hyperactivity disorder at risk for alcohol problems

Research suggests that children with attention deficit hyperactivity disorder (ADHD) are more likely to develop alcohol problems, particularly those who experience heavy drinking and stress in childhood. Parental alcoholism and family dynamics also play a significant role in the development of alcohol use disorders among young adults.

SourceAlcoholism: Clinical & Experimental Research·DateMar 26, 2007

Physicians may be obstacles to breast reconstruction

A study found that only one quarter of general surgeons refer eligible patients for breast reconstruction consultations, resulting in low rates of the procedure in the US. Factors such as surgeon attitudes and patient knowledge play a significant role in referral practices.

SourceWiley·JournalCancer·DateMar 26, 2007

Reading problems are emotionally difficult for disadvantaged children

A new study found that low-income children who experience chronic reading problems in fifth grade are more likely to develop depression, anxiety, and withdrawal. The research suggests that reading difficulties may have a significant emotional impact on preadolescent children, particularly those from disadvantaged backgrounds.

SourceSociety for Research in Child Development·JournalChild Development·DateMar 26, 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.

Study identifies steps to improve safety of renal artery stenting

A recent study found that combining a platelet inhibitor with an embolic protection device improves renal function in patients undergoing renal artery stenting. The use of abciximab reduced the occurrence of platelet-rich thrombi, while Angioguard alone was not associated with improved outcomes.

SourceAmerican College of Cardiology·DateMar 26, 2007

Researchers identify key protein in immune response to malaria and TB

A key protein called Mal alerts the immune system to respond against invading bacteria, and research has found two variants that determine how the immune system responds. The findings suggest possible new treatments for malaria and TB, as well as insights into autoimmune diseases.

SourceWellcome Trust·JournalNature Genetics·DateMar 26, 2007

Smithsonian-led Amazon research team wins scientific prize

A Smithsonian-led research team has won a scientific prize for their study on the impacts of habitat fragmentation on the Amazon ecosystem. The team found that tree communities are rapidly changing in forest fragments due to ecological changes near the margins, posing a significant threat to Amazonian biodiversity.

SourceSmithsonian Tropical Research Institute·DateMar 26, 2007
Fluke 87V Industrial Digital Multimeter

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

Contrast agent puts new light on diagnosing breast cancer

Researchers have developed a new contrast agent that selectively targets and highlights malignant micro-calcifications in the breast, while ignoring similar calcifications found in benign breast conditions. This technique has the potential to improve breast cancer diagnosis by reducing false positives and increasing detection rates.

SourceAmerican Chemical Society·DateMar 26, 2007

Value of stent-coating drugs questioned

Researchers studied the effectiveness of estradiol and rapamycin-eluting stents in reducing in-stent restenosis. However, they found no significant difference between the two groups, indicating that adding estradiol to rapamycin-coated stents may not provide a measurable benefit.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateMar 26, 2007

Common fungicide causes long-term changes in mating behavior

A study by researchers at the University of Texas at Austin found that female rats can detect changes in males' germline cells due to exposure to vinclozolin, leading them to avoid mating with those males. This avoidance behavior is linked to an epigenetic change that affects the male's fertility.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateMar 26, 2007

Cerebral embolic protection and carotid stent systems

The EXACT study found that community hospital physicians can provide exemplary outcomes for patients in need of carotid stenting with appropriate experience levels and device training. The use of embolic protection devices has been shown to reduce peri-procedural complications by 4.5% compared to the SECuRITY study.

SourceAmerican College of Cardiology·DateMar 26, 2007

Pain control after surgery reduces days of hospitalization

A University of Pittsburgh study found that effective postoperative pain control using continuous peripheral nerve block reduced average hospital stay length by nearly a day. The study analyzed data from over 1,500 patients and showed a significant economic benefit in reducing hospital-acquired infections and complications.

SourceUniversity of Pittsburgh Medical Center·DateMar 26, 2007
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.

Heart pumping variations revealed among African- and Chinese-Americans

A recent study by Johns Hopkins Medicine found that African Americans have weaker muscle contraction in three main regions of the heart, increasing their risk of heart failure. In contrast, Chinese Americans' hearts had a stronger squeezing function and contracted more quickly than other ethnic groups.

SourceJohns Hopkins Medicine·DateMar 26, 2007

Early child care linked to increases in vocabulary, some problem behaviors in 5th and 6th grades

A long-term study found that children with higher quality early child care had better vocabulary scores in 5th grade, while those with more time in center-based care were more likely to exhibit problem behaviors in 6th grade. Parenting quality was a stronger predictor of child development than type or quality of child care.

SourceNIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development·JournalChild Development·DateMar 26, 2007

Low-tech operation could dramatically reduce maternal deaths

A low-tech operation called symphysiotomy, performed under local anesthesia, can increase the size of the pelvic outlet and permit vaginal delivery of the baby. This procedure has been largely abandoned in developed countries due to its simplicity and effectiveness in addressing maternal mortality in Africa.

SourcePLOS·JournalPLOS Medicine·DateMar 26, 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.

Studies highlight 'real world' use, safety of drug-eluting stents

Long-term safety of drug-eluting stents in off-label use shows low mortality rates, with cardiac mortality at 0.8%, but high risk of late stent thrombosis among non-responders to clopidogrel. The MATRIX Registry found that 34% of patients had diabetes and 33% a history of heart attack.

SourceAmerican College of Cardiology·DateMar 26, 2007

Improving outcomes in premature births

A 5-year study found that giving nitroglycerin to mothers in preterm labor led to significant improvement in their baby's health, especially those born between 24-28 weeks. This therapy resulted in cost savings and longer-term health benefits for premature babies.

SourceElsevier Health Sciences·JournalAmerican Journal of Obstetrics and Gynecology·DateMar 26, 2007
Celestron NexStar 8SE Computerized Telescope

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

Johns Hopkins researchers examine why people eat the foods they do

The study found that socio-economic status affects food choice, with lower-income individuals more likely to prioritize affordable options. It also revealed gender differences in dietary habits, with women being more concerned about meeting health guidelines.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEuropean Journal of Clinical Nutrition·DateMar 26, 2007

Nanoparticles can track cells deep within living organisms

Researchers developed nanoparticles that can label and track stem cells used in medical treatments, offering a new way to monitor tumors and diagnose cardiovascular problems. The technology uses MRI scanning to detect the presence of labeled cells, allowing for more accurate measurements and better understanding of each cell type's role.

SourceWashU Medicine·JournalThe FASEB Journal·DateMar 26, 2007

Sodium hydration therapies equally effective

A randomized controlled trial found that peri-procedural hydration treatment with sodium bicarbonate and sodium chloride show similar rates of protection against contrast-induced nephropathy. The study evaluated 353 patients undergoing cardiac procedures and found no significant differences in kidney function between the two groups.

SourceAmerican College of Cardiology·DateMar 26, 2007

Long-term aspirin use associated with reduced risk of dying in women

Long-term aspirin use in women with low to moderate doses has been associated with a significant reduction in cardiovascular mortality and cancer deaths. The study found that women who used aspirin had a lower risk of death from any cause, particularly heart disease, compared to those who did not use aspirin.

SourceJAMA Network·JournalArchives of Internal Medicine·DateMar 26, 2007
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.

Community-based measures fail to reduce HIV levels, new study shows

A new study published in PLoS Medicine found that community-based peer education, free condom distribution, and clinic-based STI treatment services targeting high-risk individuals had no effect on HIV incidence in the wider community. However, these measures did reduce HIV-1 incidence among men who participated in the program.

SourceImperial College London·JournalPLOS Medicine·DateMar 26, 2007

Lack of a protein in lung tumors may increase risk of death

A recent study by Ohio State University researchers has identified a link between the absence of the Olig1 protein in lung tumors and poor survival rates among patients with non-small cell lung cancer. The findings suggest that patients with low levels of the protein may benefit from more aggressive therapy after surgery, potentially i...

SourceOhio State University·JournalPLOS Medicine·DateMar 26, 2007
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Gene linked to increased risk of stroke

A study of 9,178 people in Denmark found that those with two copies of the H63D genetic defect were twice to three times more likely to develop stroke than those without the gene. The study suggests a link between the H63D gene and increased risk of stroke, but the exact mechanism is unclear.

SourceAmerican Academy of Neurology·JournalNeurology·DateMar 26, 2007

'Triple negative' breast cancers linked to the young, minority

A new study found that triple negative breast cancers are more common among young, poor minority women, particularly African American and Hispanic women. The tumors are also associated with later diagnosis and shorter survival rates, with African American women having the poorest five-year survival rate.

SourceWiley·JournalCancer·DateMar 26, 2007

FNSNA awards $25,000 grant to Rutgers College of Nursing

The Foundation of the National Student Nurses' Association (FNSNA) awarded a $25,000 Promise of Nursing for New Jersey Nursing School grant to Rutgers College of Nursing. The grant provides additional supervised time and tutoring for undergraduate nursing students.

SourceRutgers University·DateMar 26, 2007
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.

Magnetic system could be key to surgery without scars

Researchers at UT Southwestern Medical Center have developed a Magnetic Anchoring and Guidance System that uses magnets to attract and manipulate laparoscopic surgical tools. This new technique allows for magnetically maneuvering laparoscopic instruments inserted into the abdominal cavity through the bellybutton or throat.

SourceUT Southwestern Medical Center·JournalAnnals of Surgery·DateMar 26, 2007

Loperamide therapy for acute diarrhea in children

A systematic review of 13 trials involving over 900 children found that loperamide should not be given to children under 3 years old or with bloody diarrhoea. However, in other children, the drug may be useful in treating acute diarrhea. The risks outweigh the benefits in high-risk situations.

SourcePLOS·JournalPLOS Medicine·DateMar 26, 2007

New 'biofuel cell' produces electricity from hydrogen in plain air

A pioneering biofuel cell has been developed that can generate electricity from low levels of hydrogen in air, offering an inexpensive and renewable alternative to platinum-based fuel cells. The cell uses enzymes from naturally occurring bacteria and can power electronic devices with minimal power requirements.

SourceAmerican Chemical Society·DateMar 26, 2007
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.

Women without regular medical care at increased risk of ovarian cancer

A case-control study found that women with no annual medical visits or pelvic examinations and those with no regular health care provider are at a higher risk of ovarian cancer. Postmenopausal women are particularly vulnerable to this increased risk.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMar 26, 2007

Severe dengue infections may go unrecognized in international travelers

A new study reveals that severe dengue infections are more common than previously thought, with 23% of patients requiring hospitalization. The study suggests that the World Health Organization's definition of dengue hemorrhagic fever may be too narrow, potentially leading to misdiagnosis and delayed treatment.

SourceInfectious Diseases Society of America·JournalThe Journal of Infectious Diseases·DateMar 26, 2007