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Science News for June 6, 2017


Enrollment in early intervention services may be influenced by administering agency

New research from Oregon State University found that the odds of a child enrolling in eligible services are significantly higher when the lead agency is health-focused. The study suggests that primary care physicians and health agencies play an important role in identifying children who could benefit from early intervention services.

SourceOregon State University·JournalJournal of Early Intervention·DateJun 6, 2017

Study proves viability of quantum satellite communications

Researchers have successfully transmitted quantum key distribution signals from a ground transmitter to a moving aircraft, paving the way for global-scale quantum communication. The system achieved secure keys up to 868 kb in length and demonstrated viability of satellite-based quantum communications.

SourceIOP Publishing·JournalQuantum Science and Technology·DateJun 6, 2017

Coming out of their shells

Researchers have identified energy metabolism adaptations in soft-shelled turtles that enabled them to lose their hard shells and explore aquatic environments. These adaptations were found in mitochondrial DNA-encoded proteins associated with aerobic respiration and are linked to the evolution of soft-shells in three turtle lineages.

Is white or whole wheat bread 'healthier?' Depends on the person

A recent study found that different people react differently to white and whole wheat bread, with half responding better to processed flour and the other half to sourdough. The researchers developed an algorithm to predict individual responses, pointing towards a new paradigm in nutrition based on personal microbiomes.

SourceCell Press·JournalCell Metabolism·DateJun 6, 2017

Older married couples and advance directives

A new study explores how spouses influence an older adult's decision to complete advance directives, revealing differences in gender and relationship characteristics. The results suggest that joint experience as a couple plays a crucial role in end-of-life planning, with some insights shedding light on individual and spousal factors

SourceAmerican Geriatrics Society·JournalJournal of the American Geriatrics Society·DateJun 6, 2017

Newly discovered disease mechanism for type 2 diabetes

A newly discovered mechanism behind reduced insulin production in type 2 diabetes reveals that insulin-producing cells regress and become immature, reducing their function. The study identifies key genes, including SOX5, which affects disease progression and suggests potential new treatments targeting cellular maturity.

SourceUniversity of Gothenburg·JournalNature Communications·DateJun 6, 2017

Drinking diet beverages during pregnancy linked to child obesity, NIH study suggests

A study by the National Institutes of Health found that drinking artificially sweetened beverages during pregnancy may increase the risk of childhood obesity. Women who consumed at least one artificially sweetened beverage per day were more likely to have children with high birth weights and increased obesity risk at age 7.

Does the sex of a cell matter in research?

A new guide from Tulane University aims to address inherent sex bias in pre-clinical research on metabolic diseases. The guide emphasizes the need to consider sex differences in biological mechanisms, not just hormones, to accelerate discovery and treatment.

SourceTulane University·JournalCell Metabolism·DateJun 6, 2017

What the hair of a fly tells us about cancer

Scientists at the University of Geneva found that a protein called Sara plays a crucial role in guiding endosomes to differentiate between cells, a process essential for fly hair development. Mutant flies without Sara have naked backs, highlighting the significance of this mechanism in cancer tumour formation.

SourceUniversité de Genève·JournalNature Communications·DateJun 6, 2017

Alectinib potential new standard of care for ALK-positive non-small lung cancer

The ALEX trial demonstrates alectinib's superiority over crizotinib as first-line therapy for ALK-positive non-small cell lung cancer, with improved progression-free survival and brain metastasis outcomes. Alectinib achieved a 53% reduction in progression risk and 68.4% one-year progression-free rate compared to crizotinib.

SourceUniversity of Colorado Anschutz Medical Campus·JournalNew England Journal of Medicine·DateJun 6, 2017

Are friends better for us than family?

A new study by Michigan State University scholar William Chopik found that friendships become increasingly important to one's happiness and health across the lifespan. In older adults, friendships are actually a stronger predictor of health and happiness than relationships with family members.

SourceMichigan State University·JournalPersonal Relationships·DateJun 6, 2017

Cancer cells send signals boosting survival and drug resistance in other cancer cells

Researchers at University of California San Diego School of Medicine found that cancer cells exploit the unfolded protein response (UPR) to activate Wnt signaling, promoting tumor survival and drug resistance. This mechanism enables cancer cells to cope with nutrient deprivation and therapies, contributing to intra-tumor heterogeneity.

SourceUniversity of California - San Diego·JournalScience Signaling·DateJun 6, 2017

How killer cells take out tumors

F8-TNF stimulates killer cells to target sarcomas by identifying them through dormant viral proteins, offering a new avenue for cancer immunotherapy. The treatment has been shown to completely cure mice of sarcoma and grant immune protection against tumor recurrence.

SourceETH Zurich·JournalCancer Research·DateJun 6, 2017

Difficulties diagnosing delirium in older adults after surgery

A recent study found that a significant number of older adults with delirium were not diagnosed by healthcare professionals. The researchers concluded that developing more objective screening tools could improve diagnosis accuracy. Understanding delirium is crucial to recognize and address the condition in older adults and caregivers.

SourceAmerican Geriatrics Society·JournalJournal of the American Geriatrics Society·DateJun 6, 2017

Looking to the future of organs-on-chip

Advances in lab-on-a-chip technology allow for more accurate analysis and translation of research to the clinic. Organ-on-a-chip (OOAC) technology has great potential in helping screen drugs in a more cost-effective manner, reducing failures and costs.

SourceFuture Science Group·JournalFuture Science OA·DateJun 6, 2017

Guts to glory?

Researchers have discovered a new complex of enzymes in herbivore gut fungi that can break down plant biomass into sugars, offering potential for sustainable fuels and chemicals. The unique structure of these enzymes, called cellulosomes, has the potential to be engineered for industrial use, reducing the need for current enzyme mixtures.

SourceUniversity of California - Santa Barbara·JournalNature Microbiology·DateJun 6, 2017

Take a coffee or tea break to protect your liver

A new study found that frequent coffee consumption was significantly associated with lower odds of high liver stiffness values, independent of lifestyle traits. Herbal tea consumption also showed a significant association with lower liver stiffness values, even in small amounts.

SourceElsevier·JournalJournal of Hepatology·DateJun 6, 2017

Copaiba: Silver bullet or snake oil?

Researchers from Florida Atlantic University caution that copaiba's potential benefits for treating inflammatory arthritis are unproven due to limited evidence. Despite this, sales of the essential oil continue to increase, presenting clinical challenges.

SourceFlorida Atlantic University·JournalJournal of Integrative Medicine·DateJun 6, 2017

Trauma centers with American College of Surgeons verification have fewer complications

A study published in the Journal of the American College of Surgeons found that trauma centers verified by the American College of Surgeons Committee on Trauma have lower complication rates for pediatric and elderly patients. The study analyzed data from the National Trauma Data Bank and found that patients treated at non-verified trau...

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateJun 6, 2017

Dogs help in breast carcinoma research

A University of Zurich study analyzed archived tissues from dog mammary tumors to understand breast carcinoma in both species. The researchers found that tumor cells reprogram healthy cells, promoting tumor growth, a mechanism also observed in human breast carcinoma.

SourceUniversity of Zurich·JournalInternational Journal of Molecular Sciences·DateJun 6, 2017

New way to detect Palmer amaranth in contaminated seedlots

A new assay developed by University of Illinois researchers can identify Palmer amaranth DNA in mixed seed samples, overcoming slow and unreliable testing methods. The low-cost technique uses quantitative PCR to detect genetic variations unique to Palmer, enabling farmers to certify their product as Palmer-free.

New planet found to be hotter than most stars

KELT-9b, a Jupiter-like gas giant, has a 'year' of only 1.5 days and orbits an extremely hot star that radiates more ultraviolet radiation than our sun. The planet's atmosphere is constantly blasted with high levels of radiation, making it inhospitable to life.

SourcePenn State·JournalNature·DateJun 6, 2017

Building a better blood-brain barrier model

Researchers at Brigham and Women's Hospital have developed a new model to mimic the blood-brain barrier, using miniature spheroids that replicate key properties and functions. This innovative approach may advance neuroscience research and expedite the discovery of brain-penetrant drugs for treating diseases.

SourceBrigham and Women's Hospital·JournalNature Communications·DateJun 6, 2017

Can you hear me now?

Researchers at Johns Hopkins University found that the Lombard effect, a phenomenon where animals raise their voices to be heard over noise, occurs in just 30 milliseconds, making it a fundamental temporal reflex. This discovery sheds light on human speech control and reveals a shared auditory process among species.

SourceJohns Hopkins University·JournalProceedings of the National Academy of Sciences·DateJun 6, 2017

What makes a movement feel strenuous?

A study published in PLOS Biology found that duration, biomechanics, and force influence the subjective effort associated with arm movements, while movement amplitudes have no effect. The researchers also discovered a link between brain functions involved in decision-making and movement execution.

SourcePLOS·JournalPLOS Biology·DateJun 6, 2017

A star is born: Lesser-known brain cell takes center stage

Researchers at Salk Institute developed a new protocol to derive astrocytes from human stem cells, which could provide breakthroughs for treatments of stroke, Alzheimer's and psychiatric disorders. The method allows for faster and more effective production of astrocytes, enabling researchers to model neurological disorders in a dish.

SourceSalk Institute·JournalStem Cell Reports·DateJun 6, 2017

Seeing inside coral

A new study uses a novel chemical technique to assess the impact of human activity on coral skeletons, revealing devastating effects of pollution and climate change. The research provides critical information for predicting future reef health and informs mitigation strategies for tropical islands facing similar challenges.

SourceAmerican University·JournalMarine Pollution Bulletin·DateJun 6, 2017

Flu shot less effective for obese adults

Researchers found that vaccinated obese adults are twice as likely to develop influenza and flu-like illnesses compared to those of healthy weight. The study suggests that existing blood tests may provide misleading information for obese individuals.

SourceSpringer·JournalInternational Journal of Obesity·DateJun 6, 2017