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Science News for February 16, 2004


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.

SourceBaylor College of Medicine·JournalJournal of Cell Biology·DateFeb 16, 2004

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.

SourceEuropean Molecular Biology Laboratory·DateFeb 16, 2004
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.

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.

SourceDOE/Pacific Northwest National Laboratory·JournalClimatic Change·DateFeb 16, 2004

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.

SourceCornell University·DateFeb 16, 2004

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Negative clinical trial results from SSRIs go unpublished, while flimsy data support their use.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.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 16, 2004

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.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 16, 2004
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.

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.

SourceAmerican Association for the Advancement of Science (AAAS)·DateFeb 16, 2004

Sun exposure behaviors matched to dose of UV radiation received

Researchers tracked individual UVR dose patterns and sun exposure in a large cohort of Danish volunteers. They found that indoor workers were exposed to the least UVR, while gardeners received the most, and children's UVR exposure increased with age.

SourceJAMA Network·JournalArchives of Dermatology·DateFeb 16, 2004

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.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2004
Apple iPhone 17 Pro

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

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 16, 2004

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...

SourceStanford University·DateFeb 16, 2004

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.

SourceUniversity of Toronto·DateFeb 16, 2004

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.

SourceYale University·JournalAmerican Journal of Epidemiology·DateFeb 16, 2004
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.

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.

SourceCell Press·JournalCurrent Biology·DateFeb 16, 2004

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 16, 2004

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.

SourceCell Press·JournalCurrent Biology·DateFeb 16, 2004
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.

SourceJoslin Diabetes Center·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2004

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.

SourceMichigan Medicine - University of Michigan·JournalArchives of Surgery·DateFeb 16, 2004
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.

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.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2004

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.

SourceSmithsonian Tropical Research Institute·JournalAmerican Journal of Tropical Medicine and Hygiene·DateFeb 16, 2004

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.

SourceUniversity of Pittsburgh Medical Center·DateFeb 16, 2004

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.

SourceIndiana University·DateFeb 16, 2004

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.

SourceUniversity of Toronto·JournalPsycho-Oncology·DateFeb 16, 2004
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.

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.

SourceUniversity of Wisconsin-Madison·JournalNature Medicine·DateFeb 16, 2004

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.

SourceUniversity of Toronto·DateFeb 16, 2004

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.

SourceJournal of Experimental Medicine·JournalJournal of Cell Biology·DateFeb 16, 2004
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.

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 16, 2004

Jefferson researchers uncover biochemical clues to how cells migrate in embryos

Researchers at Thomas Jefferson University have found that statins interfere with a biochemical pathway crucial for germ cell migration in embryonic zebrafish. This understanding may lead to insights into disease processes, including cancer, as abnormal germ cell migration can contribute to deadly cancer spread.

SourceThomas Jefferson University·JournalDevelopmental Cell·DateFeb 16, 2004

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...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateFeb 16, 2004
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.

Rare disease endemic in South America is model for studying autoimmunity

A recent study provides new hope for understanding autoimmune diseases like pemphigus foliaceus by identifying an inexpensive blood test that can detect antibodies and intervene to halt disease progression. Environmental factors, including mercury exposure, ultraviolet radiation, and female hormones, are also being investigated as pote...

SourceMedical College of Georgia at Augusta University·DateFeb 16, 2004

Recession's silver lining? More top students head to grad school

The share of top US citizen scorers on the Graduate Record Exam heading to graduate school in natural sciences and engineering increased by 31 percent between 2001 and 1998. This uptick is comparable to the gain in all score levels of examinees who intended to enroll in graduate school, suggesting a surge in interest in STEM fields.

SourceUniversity of Washington·DateFeb 16, 2004

Lactating mammary glands sense calcium

Researchers discovered that lactating mammary glands can sense changes in calcium levels and adjust milk production accordingly. The calcium-sensing receptor plays a key role in this process, allowing the gland to match milk production with the availability of calcium in the mother's body.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 16, 2004
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Cord blood cells proven to differentiate into heart muscle and brain cells

Researchers at Duke University Medical Center have confirmed that cord blood stem cells can differentiate into heart muscle cells and produce a critical enzyme to halt progressive damage. Additionally, cord blood transplants appear to slow or halt brain damage caused by metabolic diseases such as Sanfilippo Syndrome.

SourceDuke University Medical Center·DateFeb 16, 2004

Approved drug blocks deadly anthrax toxin

Researchers have found that a clinically approved drug for chronic hepatitis B can block the action of an anthrax toxin. Adefovir dipivoxil effectively reduces the effects of edema factor, one of two deadly toxins produced by anthrax, at non-toxic doses.

SourceUniversity of Chicago Medical Center·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2004
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.