Bluesky Facebook Reddit Email

Science News Archive August 2009


Page 11 of 22

Prion protein identified as a novel early pancreatic cancer biomarker

Researchers at Case Western Reserve University School of Medicine have discovered the prion protein as a novel biomarker for pancreatic cancer. The study found that the prion binds to filamin A in human pancreatic cancer cells, disrupting cell organization and signaling, and leading to aggressive tumor growth.

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.

Severe sleep apnea tied to increased risk of death

A landmark study found that moderate to severe obstructive sleep apnea is associated with a 46% increased risk of death in middle-aged adults, particularly men. The study also showed that men between 40 and 70 with severe sleep apnea were twice as likely to die during the study period.

Folic acid -- mandatory fortification may be unnecessary

A study found that persistently present levels of unmetabolized folic acid in the population indicate that mandatory fortification may result in an excessive effect. Most Irish people already get enough folic acid from voluntarily fortified foods, suggesting mandatory policies may be unnecessary.

Faster, cheaper way to find disease genes in human genome passes initial test

Researchers developed a novel genome-analysis strategy to rapidly discover possible gene-disease links, enabling the search for disease-causing genes in unrelated individuals with the same condition. The approach uses targeted analysis and newer technology to identify candidate genes for Mendelian disorders, offering a promising soluti...

Celestron NexStar 8SE Computerized Telescope

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

Flat bacteria in nanoslits

Researchers at Delft University of Technology discovered that bacteria can retain motility in surprisingly narrow channels, growing and dividing instead of swimming. This new phenotype may be more common than thought, with implications for membrane filters and medical applications.

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.

Cancer's break-in tools possibly identified at Duke

A single cell in a nematode worm is providing clues into cancer's ability to invade new tissues. Researchers found that integrin and netrin molecules may be a valuable target in halting cancer's spread via metastasis.

Organic electronics a 2-way street, thanks to new plastic semiconductor

A new plastic semiconductor technology allows for the transportation of both positive and negative charges, enabling simpler circuit construction and potentially revolutionizing the field of organic electronics. This breakthrough could lead to the development of cheaper, thinner, and more flexible electronic devices.

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.

Research points to new target for stopping colon cancer

Scientists at the University of North Carolina have found that drugs targeting ERBB3 could be more effective in killing colon cancers resistant to current EGFR inhibitors. Genetic studies show that blocking ERBB3 can significantly reduce cell growth and induce cell death in human colon cancer cells.

Mexican health care reform has been convoluted and ineffective

A recent analysis published in PLOS Medicine found that twenty-five years of healthcare reforms in Mexico have increased access to medical care, but at the cost of inefficiency and inadequate addressing of health inequities. The study highlights the need for comprehensive reform to improve the Mexican healthcare system.

Does sugar feed cancer?

Researchers at Huntsman Cancer Institute have discovered that restricting glutamine availability can halt tumor growth by blocking glucose utilization. This breakthrough could lead to the development of new drugs targeting glutamine utilization or MondoA/ TXNIP.

JCI online early table of contents: August 17, 2009

Researchers identified miR-143 and miR-145 as key regulators of VSMC contractility and blood pressure. The study found that mice lacking these microRNAs had reduced contractile VSMCs and increased tissue matrix-producing cells, leading to signs of blood vessel disease.

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.

Magazines for women depict babies in unsafe sleep environments

A new study found that over a third of baby photos in women's magazines show babies sleeping in unsafe positions, and two-thirds of sleep environments depicted are also hazardous. The American Academy of Pediatrics recommends placing babies on their backs without soft bedding to reduce SIDS risk.

Apple iPhone 17 Pro

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

Honey-bee aggression study suggests nurture alters nature

A new study by University of Illinois researchers reveals that environmental factors can alter aggression levels in honey bees. By analyzing gene expression patterns in response to alarm pheromone, the team found similarities between short-term and long-term changes, suggesting a connection between nurture and nature.

Preparing for the H1N1 pandemic: a formidable foe

A national champion is needed to ensure access to vaccines and expertise, while local leaders must collaborate to respond rapidly. The Canadian Medical Association Journal emphasizes the importance of preparedness and clear communication to combat the H1N1 pandemic.

2 NASA satellites capture Hurricane Bill's 'baby pictures'

Two NASA satellites captured Hurricane Bill's 'baby pictures' shortly after he became a hurricane, revealing its large size and organized structure. The data showed heavy rainfall bands and high thunderstorms, indicating the storm's increasing power.

New DNA test uses nanotechnology to find early signs of cancer

Researchers at Johns Hopkins University developed a highly sensitive test using quantum dots to detect DNA methylation, an early warning sign of cancer. The test could alert people at risk and help doctors determine the effectiveness of cancer treatments.

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.

The first gene-encoded amphibian toxin isolated

Researchers in China have discovered a new protein-based neurotoxin, anntoxin, found in the skin of the Chinese tree frog. This finding sheds light on the evolution of amphibians and poison, revealing a unique toxin that differs from other vertebrate animals.

Guam Navy and University of Guam partner to conserve native tree

The University of Guam and Guam Navy have partnered to establish a conservation planting of the endangered fadang tree on Tinian, which has been threatened by exotic insect species. The project aims to create a safe haven for the species outside its natural range.

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.

UCSF/Stanford team finds labor induction need not increase cesarean risk

Elective labor induction at 41 weeks of gestation lowers cesarean risk by 22 percent compared to waiting. Women whose labor was electively induced were also half as likely to have meconium-stained amniotic fluid, a sign of fetal stress. However, physicians need to give inductions sufficient time to work before deciding on a cesarean.

Women, minorities face special hurdles in job market

A new study from North Carolina State University finds that white men receive significantly more job leads than women and racial minorities, particularly among upper management positions. The disparity is attributed to social capital, a measure of connections to people in various fields of employment.

Researchers find genetic link between physical pain and social rejection

A study published in Proceedings of the National Academy of Sciences has identified a genetic link between physical pain sensitivity and social rejection. Researchers found that individuals with a rare form of the OPRM1 gene are more sensitive to rejection and experience increased brain activity in response to rejection.

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.

Embargoed news from Annals of Internal Medicine

Researchers found a Chinese herbal remedy to be more effective than standard treatment in reducing symptoms of rheumatoid arthritis. In contrast, elective induction of labor may reduce cesarean deliveries and improve fetal outcomes for pregnant women at term.

Study shows how to boost value of Alzheimer's-fighting compounds

A study by Purdue University and Mount Sinai School of Medicine found that chronic consumption of polyphenols from grapeseed extract can improve absorption in the brain, potentially preventing the formation of beta-amyloid protein associated with Alzheimer's disease. This research may lead to more effective treatment options for patients.

Mother's immune system may block fetal treatments for blood diseases

A recent study in mice suggests that the mother's immune response interferes with the fetus's ability to tolerate transplanted donor cells. Researchers found that mouse pups nursed by their biological mothers lost transplanted cells, while those nursed by foster mothers retained them.

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.

Study supports DNA repair-blocker research in cancer therapy

Scientists at Dana-Farber Cancer Institute have discovered the mechanism behind a DNA repair-blocking approach to cancer treatment, suggesting that these drugs can sensitize cancer cells to chemotherapy. The findings also indicate that normal cells may be protected from DNA damage by these inhibitors.

Water quality improves after lawn fertilizer ban, study shows

A University of Michigan study found that banning phosphorus-containing lawn fertilizers led to a significant decrease in phosphorus levels in the Huron River. Phosphorus levels dropped by an average of 28% after Ann Arbor adopted the ban, suggesting that ordinances can be effective in reducing pollution.

Cellular crosstalk linked to lung disease

Researchers identified a critical crosstalk pathway between lung epithelial cells and airway smooth muscle cells, contributing to lung diseases like asthma and pulmonary hypertension. The study provides potential new therapeutic targets for treating these conditions.

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.

Genetic diagnosis of embryos: clear explanation, not rhetoric needed

The use of genetic diagnosis in embryos raises concerns about eugenics and perfect child policies. Research shows that parents avoid having children with severe diseases they already carry, rather than seeking a 'perfect' child. Inflammatory language can fuel the debate, but evidence-based policy and practice are needed.

New material for nanoscale computer chips

Researchers have created prototype computer electronics on the nanoscale using organic and inorganic nanowires. The new material has a low operational current, high mobility, and good stability, making it a promising alternative to silicon transistors.

eHealth interventions need to be continuously evaluated

A recent study emphasizes the importance of evaluating eHealth interventions to improve the quality and safety of healthcare. Aziz Sheikh and Lorraine Catwell from The University of Edinburgh highlight the need for continuous systemic evaluation of eHealth solutions to address potential risks and challenges.

Scientists link genetic glitches to common childhood cancer

Researchers discovered two genetic variations linked to an increased risk of acute lymphoblastic leukemia (ALL), the most common childhood cancer in the US. Identifying these genetic glitches could improve treatment for children with this subtype of ALL, which tends to respond well to chemotherapy.

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.

Excessive exercise can be addicting, new study says

A new study by the American Psychological Association reveals that excessive exercise can lead to physical addiction, causing withdrawal symptoms. Rats given a drug that blocks the action of heroin showed severe withdrawal symptoms after running excessively, highlighting the potential for exercise to become compulsive and addictive.

How to make a lung

Researchers found that Wnt2 and Wnt2b molecules are crucial for specifying lung progenitor cells in the foregut region. Without these molecules, animals fail to develop lungs, highlighting their importance in treating respiratory diseases. The study's findings also suggest a connection between pulmonary and cardiac development.

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.

Nanomagnets guide stem cells to damaged tissue

A new technique uses microscopic magnetic particles to target stem cells to sites of cardiovascular injury, resulting in a five-fold increase in cell localization and six-fold increase in cell capture. The method is directly applicable to clinical practice and could lead to the treatment of heart attacks and other vascular injuries usi...