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Science News for November 13, 2011


Newly identified gene mutation adds to melanoma risk

Researchers identified a novel gene mutation in the MITF gene that increases the risk of both inherited and sporadic cases of malignant melanoma. The mutation, known as E318K, was found to block sumoylation of MITF, leading to overactivity and significantly increasing melanoma risk.

SourceMassachusetts General Hospital·JournalNature·DateNov 13, 2011

Low vitamin C levels may raise heart failure patients' risk

Research found that heart failure patients with low vitamin C intake had shorter intervals without major cardiac issues or death and were more likely to die from cardiovascular disease. Inflammation pathways in heart failure may contribute to poor health outcomes.

SourceAmerican Heart Association·DateNov 13, 2011
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.

Anti-clotting drug lowers risks in acute coronary syndrome treatment

Researchers found that adding the oral anti-clotting drug rivaroxaban to standard medical treatment for acute coronary syndrome lowered the risk of death, heart attack, or stroke by an average of 16 percent. This improvement in survival rates is comparable to the benefits seen since the introduction of aspirin.

SourceBeth Israel Deaconess Medical Center·JournalNew England Journal of Medicine·DateNov 13, 2011

HDAC inhibitor may overcome resistance to common breast cancer drug

Researchers found that introducing a novel histone deacetylase inhibitor can reverse tumor's survival strategy and stop resistance, leading to higher cell death rates. This approach may prevent hormone therapy resistance in patients with estrogen receptor-positive breast cancer.

SourceAmerican Association for Cancer Research·DateNov 13, 2011

Patients with hypertrophic cardiomyopathy live into their 90s

A study found that hypertrophic cardiomyopathy patients can survive to the age of 90, with most deaths unrelated to the disease. The study analyzed data from 1,297 HCM patients and showed a greater proportion of patients reaching 90 years or older than expected in the general population.

SourceMinneapolis Heart Institute Foundation·DateNov 13, 2011

Antifolates show promise against NSCLC subtype

A recent study found that antifolate drugs may be effective against non-small cell lung cancer (NSCLC) patients with specific mutations in the KRAS gene. The treatment can stop the KRAS gene from being expressed, leading to cancer cell death.

SourceAmerican Association for Cancer Research·DateNov 13, 2011

Rising air pollution worsens drought, flooding, UMD-led study shows

A new study led by University of Maryland researchers found that air pollution increases the intensity of severe storms in wet regions while reducing precipitation in dry regions. The study's findings have significant economic and water resource implications for regions across the US and globally.

SourceUniversity of Maryland·JournalNature Geoscience·DateNov 13, 2011
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.

Professional dental cleanings may reduce risk of heart attack, stroke

A study by the American Heart Association found that frequent professional tooth scaling can lower the risk of heart attacks and strokes. Participants who received regular cleanings had a 24% lower risk of heart attack and 13% lower risk of stroke compared to those who never received dental care.

SourceAmerican Heart Association·DateNov 13, 2011

A more flexible window into the brain

A new microelectronic device developed by a Penn-led team can record brain activity at high resolutions, revolutionizing brain-computer interfaces for treating neurological and psychiatric illnesses. The device's flexibility and multiplexed nanosensors enable precise mapping of brain networks underlying normal function and disease.

SourceUniversity of Pennsylvania School of Medicine·JournalNature Neuroscience·DateNov 13, 2011

BUSM: Severe sepsis, new-onset AF associated with increased risk of hospital stroke, death

A recent study by researchers at Boston University School of Medicine found that severe sepsis and new-onset atrial fibrillation are associated with a higher risk of hospital stroke and death. Patients diagnosed with these conditions during hospitalization had three times the risk of stroke and a seven percent increased risk of mortality.

SourceBoston University School of Medicine·JournalJAMA·DateNov 13, 2011

Paying for sex and 'playing dead' - the deceitful gift-giving spider

New research shows that male nursery web spiders offer 'worthless' gifts to potential mates, which females promptly reject. Despite this, the act of giving a gift still increases mating success for males. The study suggests that both males and females assess the value of gifts and adjust their behavior accordingly.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateNov 13, 2011
Apple iPhone 17 Pro

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

Bacterial genes tell the tale of an outbreak's evolution

Researchers sequenced bacterial genomes to understand how a pathogen evolves in response to human defenses and medical treatment. The study found widespread purifying selection, but also identified specific genes that showed strong evidence of positive selection.

SourceHarvard Medical School·JournalNature Genetics·DateNov 13, 2011
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.

Future obesity may be predicted at 3.5 years of age

Researchers identified two key factors increasing the risk of childhood obesity: mothers' weight and smoking during pregnancy. Children born to overweight or smoking mothers were more likely to develop high-rising BMI trajectories, with over 50% obese by middle childhood.

SourceUniversity of Montreal·JournalArchives of Pediatrics and Adolescent Medicine·DateNov 13, 2011
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.

Combination therapy shows potent tumor growth inhibition in preclinical studies

A combination of REGN910 and aflibercept has been shown to inhibit tumor growth more effectively than single-agent therapies, with significant improvements in antitumor effects observed in animal models. The treatment also induced increased tumor hypoxia, leading to rapid cell death and dramatic regression in colorectal tumors.

SourceAmerican Association for Cancer Research·DateNov 13, 2011

Tamoxifen resistance -- and how to defeat it

UCSF researchers have discovered the molecular basis for tamoxifen resistance and found a potential way to defeat it. They showed that cells can develop resistance through epigenetic modification, specifically by elevating expression of the 'survival' gene AKT.

SourceUniversity of California - San Francisco·DateNov 13, 2011

Abused girls may have higher risk of heart disease, stroke as adults

Research suggests that sexually and physically abused girls may have a higher risk of cardiovascular disease and strokes as adults. The study found that women who experienced severe physical abuse or forced sex in childhood had a significantly increased risk of heart attacks and strokes.

SourceAmerican Heart Association·DateNov 13, 2011
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.

Benefit of novel drug in breast cancer seen in blood within weeks

A new study found that a novel histone deacetylase inhibitor drug, entinostat, can predict clinical benefit in breast cancer patients just days after treatment. The study showed that levels of protein lysine acetylation were related to clinical benefit, with patients who had elevated levels having a reduced risk of disease progression.

SourceAmerican Association for Cancer Research·DateNov 13, 2011

CSHL team solves a protein complex's molecular structure to explain its role in gene silencing

Researchers from CSHL and St. Jude's Research Hospital have discovered new details of how a protein complex contributes to heterochromatin assembly and gene silencing in fission yeast. The team identified a previously unknown substructure at the end of Chp1, which plays a crucial role in heterochromatin formation at telomeres.

SourceCold Spring Harbor Laboratory·JournalNature Structural & Molecular Biology·DateNov 13, 2011
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.

New way to target – and kill – proliferating tumors

Researchers at UC San Diego have identified a new class of drugs that can arrest division in virtually all tumor cells by altering the structure of the RAF enzyme. The discovery offers an effective alternative to current therapies and has shown promising results in tests on cancer cell lines, animal models, and human tissue biopsies.

SourceUniversity of California - San Diego·JournalNature Medicine·DateNov 13, 2011