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Science News Archive February 2004


Page 4 of 11

The future of drug development

Researchers Hubbard and Love propose a new system for funding drug development, separating R&D and product markets. This could lead to greater openness in drug research, reduced prices, and expanded access to new medicines.

American Thoracic Society Journal news tips for February 2004 (second issue)

A study of influenza vaccination in children with asthma found no significant reduction in asthma exacerbations caused by the flu. In contrast, a separate study showed that maternal and personal smoking synergize to increase airflow limitation in offspring, increasing the risk of Chronic Obstruction Pulmonary Disease (COPD).

Imaging technique reveals new structure in retinal cells

A new imaging technique reveals the presence of a previously unknown organelle called a retinosome, which houses retinyl esters essential to the regeneration process. The discovery could lead to better understanding and treatment of congenital blindness caused by defects in the retinoid cycle.

Other highlights in the February 18 issue of JNCI

Two studies in the February 18 issue of JNCI investigated aspirin use and its association with two types of cancer. Regular aspirin use was found to lower Hodgkin's lymphoma risk, while patients with Barrett's esophagus may benefit from cost-effective aspirin therapy for esophageal cancer chemoprevention.

SAMSUNG T9 Portable SSD 2TB

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Key advance reported in regenerating nerve fibers

Researchers developed a two-pronged approach to stimulate nerve cell growth and overcome inhibitory proteins, achieving triple the axon regeneration achieved with growth factors alone. The technique aims to restore vision and treat spinal cord injuries, strokes, and neurodegenerative diseases.

Tumor cell-specific therapy shows preclinical promise

Researchers developed a novel tumor cell-specific therapy that restores p53 protein function in cancer cells. This approach eliminates tumors and increases animal survival by up to six times, offering promising implications for targeted therapies.

Apple iPhone 17 Pro

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

Clinical research key in advance to prospective health care

A recent editorial by Ralph Snyderman emphasizes the importance of clinical research in advancing healthcare. The key element needed to define and monitor effective health strategies is clinical research, including translating basic scientific findings into medical treatments and evaluating patient outcomes.

Insulin-producing cells found in a variety of tissues in diabetes

Researchers have discovered insulin-producing cells in various tissues in diabetic mice, which can be triggered by high blood sugar. The findings suggest that these cells could be harnessed to generate insulin-producing cells from other tissues, offering a potential breakthrough for diabetes treatment.

DHEA boosts growth rate of human neural stem cells

Researchers at the University of Wisconsin-Madison have found that DHEA significantly increases the division of human neural stem cells, leading to increased neurogenesis. The study's findings provide direct evidence of DHEA's effects on critical human cells, shedding light on the hormone's potential benefits and risks.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Point well taken

Researchers found that referential gesturing improves identification of targets and reduces verbal cues when participants can see each other. The study published in Psychological Science shows that pointing facilitates the use of verbal descriptions by focusing the audience's gaze on a specific subregion of shared visual space.

AGU Journal Highlights - 17 February 2004

Scientists found a possible link between increasing greenhouse gases and European heat waves, while also studying the transfer of energy from earthquakes through Earth's formations. Additionally, research revealed the Amazon River's strong impact on tropical Atlantic carbon levels and new insights into Martian drainage basins that may ...

Now accepting nominations for the $2,500 M. Powell Lawton Award

The M. Powell Lawton Award recognizes significant contributions to gerontological treatment, practice, or service, as well as innovative public policy changes that improve the lives of older persons. Nominees must be endorsed by a GSA member and can be from any discipline.

Nikon Monarch 5 8x42 Binoculars

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Hormone found to protect bones

A Baylor College of Medicine study reveals that the hormone amylin inhibits bone loss and resorption. Mice without amylin have less bone mass due to increased bone destruction, suggesting a potential therapeutic avenue for preventing osteoporosis in Type 1 diabetes patients.

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.

The EMBC agrees to six-year budget for EMBO

The EMBC has agreed to a six-year budget for EMBO, providing stability for European molecular biology research. This agreement was reached after earlier proposals requested higher funding levels, but ultimately, a compromise was made to support the organization's activities and promote scientific advancements in Europe.

Global warming to squeeze western mountains dry by 2050

A new study predicts that global warming will diminish Western US mountain snow cover by up to 70% by 2050, leading to increased flooding and drought. The loss of snowpack will disrupt the region's agriculture, fisheries, and hydropower industries.

New X-ray sources speed protein crystallography

The use of high-powered synchrotron X-ray sources and advanced detectors has significantly progressed protein structure calculation. Novel technologies like Energy Recovery Linacs (ERLs) will enable unprecedented brilliance in X-ray beams, opening new avenues for scientific exploration.

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.

Undisclosed results of clinical trials

Negative clinical trial results from SSRIs go unpublished, while flimsy data support their use. Flawed trial design, secrecy in approvals process, and inadequate adverse drug reporting systems contribute to ineffective and unsafe drugs entering the market.

The link between funding and the disclosure of clinical trial results

A study of 332 randomized trials found industry-funded trials more likely to yield statistically significant pro-industry findings. Pharmaceutical companies prioritize trials with higher potential for positive results. This bias affects not only medical treatments but also new surgical interventions.

Athletics, genetic enhancement and ethics

A study suggests that genetic enhancement can increase muscle mass and strength in rats, which could benefit elite athletes, patients with muscle wasting, and elderly individuals. The research also highlights the need for regulatory bodies to distinguish between allowed and banned endurance enhancement practices.

Sony Alpha a7 IV (Body Only)

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Discovery could lead to better treatment for cryptosporidum infections

A team of biologists has discovered that the parasite relies on salvage enzymes to steal nutrients from its host to survive. This discovery provides new targets for drugs designed to treat victims of this parasitic disease, which causes chronic severe diarrhea and life-threatening complications in AIDS patients.

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.

How much is too much VEGF?

Researchers at Stanford University found that microenvironmental VEGF concentration determines the threshold between normal and aberrant blood vessel growth. Long-term continuous delivery of VEGF maintains below this threshold promotes normal angiogenesis, guiding therapeutic strategies.

Models help estimate children's exposure to toxins

Stanford University researchers use video cameras to capture daily activities of healthy children in various environments. By analyzing these recordings, they create detailed models of how children ingest or become exposed to substances like lead and pesticides. This approach allows for the collection of tens of thousands of data point...

Virtual play boosts disabled children's self-image

Researchers found that simulated games in virtual reality boosted children's belief in their abilities, regardless of their physical limitations. The therapy also gave them a chance to succeed in types of play they might have difficulty accessing otherwise.

Hair dye use increases risk of non-Hodgkin's lymphoma

A Yale University study found an increased risk of non-Hodgkin's lymphoma among women who began using hair-coloring products before 1980, particularly those using darker permanent products for over 25 years. The study suggests that recent changes in hair dye formula contents may have reduced the risk for newer users.

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.

Flies offer clues to anesthesia-resistant memory

Researchers discovered that the radish gene encodes a phospholipase-A2 enzyme, which plays a crucial role in anesthesia-resistant memory. The study found this enzyme is also involved in memory formation in chickens and rodents, suggesting a conserved mechanism across animal phyla.

JCI table of contents, 16 February 2004

The calcium-sensing receptor plays a crucial role in regulating mammary gland function, influencing milk production and composition. This study demonstrates that the receptor helps match milk production with available calcium levels in the mother's body.

A new protective protein against Parkinson's disease

Researchers discovered a protective protein, Wlds, that safeguards dopamine-axon connections in Parkinson's disease. The study revealed that while the protein protects axons, it does not prevent cell body damage, highlighting differences in degeneration processes.

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.

Possible mechanism for link between diabetes and Alzheimer's disease discovered

Research at Joslin Diabetes Center reveals that insulin resistance in the brain may contribute to the development of Alzheimer's disease. Studies using genetically altered mice found a marked reduction in insulin signaling proteins, leading to excessive phosphorylation of tau protein, a hallmark of brain lesions in Alzheimer's.

UMHS study finds surgery safer at teaching hospitals

Patients undergoing complex gastrointestinal surgery at teaching hospitals are less likely to die or experience complications, with death rates under 10% compared to non-teaching hospitals. Higher hospital volumes also lead to fewer prolonged hospital stays, suggesting fewer complications from surgery.

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.

Exercise sharpens focus, decision-making among aging adults

A six-month aerobic exercise program improved cognitive performance on a decision-making task in older adults by reducing behavioral conflict. The study used functional magnetic resonance imaging to measure changes in brain activity in middle-frontal and superior parietal regions, which were associated with improved performance.

New, non-radioactive screen for antimalarial compounds

The new assay uses fluorochrome binding to detect malaria parasites in cell culture, providing a safer and more cost-effective alternative to current methods. This breakthrough has the potential to drastically reduce the price tag for drug discovery and promote research into tropical parasitic diseases.

Blood protein may be important predictor of future cardiovascular attack

Researchers discovered a link between serum amyloid alpha (SAA) and future cardiovascular events, with increased levels predicting a 3% higher risk of heart attack or stroke over three years. SAA appears to respond specifically to active heart disease, making it a potential more accurate predictor than C-reactive protein.

Relearning to hear

Researchers found that gradual exposure to frequency-shifted sounds improved subject's ability to comprehend speech in cochlear implants. Brain scans revealed systematic changes in cortical responses after several hours of exposure.

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.

Women pleased with preventative mastectomy decision

A study of women in Ontario who had double mastectomies between 1991 and 2000 found that two-thirds reported no change or improvement in their sexual functioning. The majority also showed no decline in self-image, with nearly half reporting an improved self-image after surgery.

Studies offer new insight into HIV vaccine development

Researchers at UW-Madison find that mutations allowing AIDS viruses to escape immune detection also hinder their ability to grow after transmission. The discovery may help design vaccines targeting the virus's most vulnerable spots.

Improved medical treatment of serious heart problems focus of UH-led group

A UH-led group of experts has developed new stent designs to minimize complications in the treatment of aortic abdominal aneurysm (AAA) and coronary artery disease (CAD). These innovative stents feature genetically engineered cartilage cell-coated designs and novel mechanical properties that mimic human arteries.

Arbour raised bar for prosecuting war crimes, book says

A new book by John Hagan provides a detailed look at the inner workings of the International Criminal Tribunal for the former Yugoslavia. The book sheds light on investigations not covered by the media and highlights the key role played by Louise Arbour in setting up the tribunal's effective operations.

How meals become bones

Type I diabetics experience bone loss due to insufficient amylin production, which reduces osteoclast cell activity. Amylin injection or pathway activation may help correct this issue and alleviate osteoporosis.

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.

Neurons so excited that they just can't hide it

A study found that mice with silenced small-conductance calcium-activated potassium (SK) channels in the DCN had increased firing rates and ataxia. Despite this, Purkinje cell input into the DCN remained intact, indicating a direct relationship between SK channel regulation and proper muscle coordination.

Annals of Internal Medicine, tip sheet, February 17, 2004

The US Preventive Services Task Force has issued new recommendations for screening asymptomatic people for heart disease. However, evidence is insufficient to recommend EKG, treadmill tests, and CT scans for these groups. Additionally, hospice care may increase overall Medicare costs, but provide savings in certain cases with aggressiv...

Meta Quest 3 512GB

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