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Science News for March 30, 2014


Erasing a genetic mutation

Researchers successfully used CRISPR gene-editing to correct a defective gene in adult mice, allowing them to survive without treatment. The study offers promising hope for treating genetic disorders, including hemophilia and Huntington's disease.

SourceMassachusetts Institute of Technology·JournalNature Biotechnology·DateMar 30, 2014
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.

Primary cardiovascular disease prevention is leaving the office

A new telemedicine program integrating office visits with supplemental phone coaching improves cardiovascular disease risk factors such as fruit and vegetable consumption, physical activity, stress reduction, and medication adherence. Adults who engaged in five or more coaching sessions showed significant improvements.

SourceMinneapolis Heart Institute Foundation·DateMar 30, 2014

Evolocumab safely drops LDL cholesterol well below statin-only baseline

The LAPLACE-2 study shows evolocumab produces highly significant reductions in LDL cholesterol when added to statins, with 93% of patients achieving an LDL level below 70mg/dL. Evolocumab also reduces non-HDL cholesterol, apolipoprotein B and lipoprotein (a) levels without liver damage or muscle problems.

SourceAmerican College of Cardiology·DateMar 30, 2014

Heat-conducting polymer cools hot electronic devices at 200 degrees C

Researchers have developed a thermal interface material that can conduct heat 20 times better than traditional polymers, allowing for reliable operation at temperatures of up to 200 degrees Celsius. The new material could improve thermal management in electronic devices, such as servers and mobile devices.

SourceGeorgia Institute of Technology·JournalNature Nanotechnology·DateMar 30, 2014

Higher risks without cardio benefits halt study of aleglitazar

The AleCardio trial was ended early after patients treated with aleglitazar showed higher rates of heart failure, kidney events, and gastrointestinal bleeding. The study found no cardiovascular benefits despite dual-action on PPAR receptors, leading researchers to consider the class of drug being tested clinically.

SourceAmerican College of Cardiology·JournalJAMA·DateMar 30, 2014
Apple iPhone 17 Pro

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

Darapladib falls short in chronic coronary heart disease

The novel inflammation inhibitor darapladib showed no primary-endpoint advantage over placebo in treating chronic coronary heart disease, but suggested benefits for specific coronary artery-related endpoints. Subgroup analysis revealed smokers had a greater decrease in major adverse cardiovascular events.

SourceAmerican College of Cardiology·JournalNew England Journal of Medicine·DateMar 30, 2014

A new approach to Huntington's disease?

A UCLA study found that increasing Kir4.1 levels in astrocytes improves walking and prolongs survival in a mouse model of Huntington's disease. The discovery could lead to new drug targets for treating the devastating disorder, which affects one in every 20,000 Americans.

SourceUniversity of California - Los Angeles Health Sciences·JournalNature Neuroscience·DateMar 30, 2014

Researchers uncover secrets of a mollusk's unique bioceramic armor

Researchers at MIT analyzed the shells of a sea creature to determine why they are exceptionally tough and optically clear. The shells' unique properties emerge from a specialized nanostructure that allows optical clarity, as well as efficient energy dissipation and localized deformation.

SourceMassachusetts Institute of Technology·JournalNature Materials·DateMar 30, 2014
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.

Evolocumab superior to ezetimibe in lowering LDL cholesterol

In a phase III study, evolocumab was shown to effectively lower LDL-C levels, with fewer side effects compared to ezetimibe. The results suggest that evolocumab may be a promising alternative for patients who cannot tolerate statins due to intolerable side effects.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateMar 30, 2014

New study confirms benefits of treating heart attack patients with a cheap drug

A new 6-month follow-up study confirms that early treatment with metoprolol significantly reduces dead heart muscle, hospital readmissions, and cardioverter-defibrillator implantation. The treatment also shows promise for reducing chronic heart failure cases.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalJournal of the American College of Cardiology·DateMar 30, 2014
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.

New gel to promote bone growth on implants used in surgical procedures

A new gel coating has been developed to promote bone growth on implants, allowing for improved integration and reduced rejection. The coating, made from a protein that encourages bone formation, can be released slowly in response to calcium ions, stimulating bone growth on the implant.

SourceUppsala University·JournalAdvanced Engineering Materials·DateMar 30, 2014

Study compares heart valve systems

A recent study published in JAMA compared two types of heart valve technologies used in transcatheter aortic valve replacement (TAVR) procedures. The researchers found that balloon-expandable valves had a higher rate of device success, with lower rates of complications such as regurgitation and the need for additional surgeries.

SourceJAMA Network·JournalJAMA·DateMar 30, 2014
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.

Earth's dynamic interior

Researchers have developed new simulations that depict the dynamics of deep Earth, revealing a complex composition of the lowermost part of the mantle. The study suggests that mantle plumes can carry a combination of different materials from several reservoirs, explaining observations of hotspot lavas' chemical complexity.

SourceArizona State University·JournalNature Geoscience·DateMar 30, 2014

Renal denervation patient registry finds low rate of adverse events

Patients with uncontrolled high blood pressure treated with renal denervation had low rates of adverse events, including five procedural complications and nine hospitalizations. The procedure also showed significant lowering of office systolic blood pressure by 11.9mmHg at six months.

SourceAmerican College of Cardiology·DateMar 30, 2014

Genetic mutations warn of skin cancer risk

Researchers have discovered that specific genetic mutations can increase the risk of melanoma by deactivating a gene that protects chromosomes from damage. This finding has significant implications for early detection and treatment strategies.

SourceWellcome Trust Sanger Institute·JournalNature Genetics·DateMar 30, 2014

The Atlantic Ocean dances with the sun and volcanoes

Researchers at Aarhus University found a correlation between Atlantic Ocean temperature fluctuations and external forces like the Sun's energy cycle and volcanic eruptions since the Little Ice Age. This challenges previous theories of internal variability in ocean circulation, suggesting a complex interaction between mechanisms.

SourceAarhus University·JournalNature Communications·DateMar 30, 2014
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.

Meeting climate targets may require reducing meat and dairy consumption

A recent study at Chalmers University of Technology found that greenhouse gas emissions from food production threaten the UN's 2-degree Celsius limit for global warming. Reducing meat and dairy consumption could bring agricultural climate pollution down to safe levels, but broad dietary change can take time.

SourceChalmers University of Technology·JournalClimatic Change·DateMar 30, 2014

Effect of important air pollutants may be absent from key precipitation observations

A groundbreaking study from the University of Exeter reveals a significant discrepancy between observed and modelled precipitation levels in the Northern Hemisphere mid-latitudes. The study suggests that aerosol concentrations in the atmosphere may be underestimating the impact on regional temperature and precipitation changes.

SourceUniversity of Exeter·JournalNature Climate Change·DateMar 30, 2014

Cardiac resynchronization improves survival in heart failure patients

A new study found that cardiac resynchronization therapy with a defibrillator (CRT-D) significantly reduces mortality in mildly symptomatic heart failure patients with left bundle branch block. The five-year survival rate was close to 90% among CRT-D patients.

SourceAmerican College of Cardiology·JournalNew England Journal of Medicine·DateMar 30, 2014
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Blood test helps predict heart attack risk for patients with chest pain

A blood test using high-sensitivity cardiac troponin T can accurately predict heart attack risk in patients with chest pain, allowing for targeted admissions and reduced hospital costs. The test's negative predictive value was found to be 99.8 percent for heart attack within 30 days.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateMar 30, 2014