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Science News Archive October 2010 - Page 23


Page 23 of 25

Life threatening breathing disorder of Rett syndrome prevented

Researchers at the University of Bristol have discovered a way to prevent intermittent episodes of breath holding associated with Rett syndrome by increasing levels of aminobutyric acid and stimulating serotonin receptors. This breakthrough has significant implications for alleviating symptoms in patients with this debilitating disease.

SourceUniversity of Bristol·JournalProceedings of the National Academy of Sciences·DateOct 4, 2010

An eye for an eye

Researchers analyzed killings and rocket attacks between Israel and Palestine, finding that each side's attacks lead to violent retaliation from the other. This challenges claims of a one-sided conflict, suggesting both Israelis and Palestinians play a role in perpetuating violence.

SourceUniversity of Zurich·JournalProceedings of the National Academy of Sciences·DateOct 4, 2010

Aeras-led research consortium receives FDA support

The Aeras Global TB Vaccine Foundation has received a $362,102 grant from the US FDA to develop new biological and immunological biomarkers for TB vaccine development. The project aims to evaluate four mycobacterial growth inhibition assays and identify T-cell immune responses associated with protective vaccines.

SourceAeras·DateOct 4, 2010

Using cassava to address vitamin A deficiency

A naturally occurring variant of cassava has been found to accumulate high levels of provitamin A carotenoids, offering a potential solution to vitamin A deficiency in sub-Saharan Africa. Transgenic approaches can also be used to increase the enzyme phytoene synthase, leading to increased carotenoid synthesis and biofortification of co...

SourceAmerican Society of Plant Biologists·JournalThe Plant Cell·DateOct 4, 2010

New approach to underweight COPD patients

Researchers at the University of Gothenburg developed a new equation to calculate energy requirements for underweight COPD patients, leading to more accurate nutritional approaches. The study found that this method can help patients stop losing weight and even gain weight.

SourceUniversity of Gothenburg·JournalInternational Journal of Chronic Obstructive Pulmonary Disease·DateOct 4, 2010

Technology transfer and postdoc entrepreneurs

A study published in the International Journal of Knowledge-Based Development found that postdoctoral researchers see technology transfer as important but few are actively preparing for self-employment. Initial wealth was a distinguishing factor among those who were self-employed.

SourceInderscience Publishers·JournalInternational Journal of Knowledge-Based Development·DateOct 4, 2010

Walnuts, walnut oil, improve reaction to stress

A diet rich in walnuts and walnut oil may improve blood pressure responses to stress by lowering resting blood pressure and inflammation. The study found that adding flaxseed oil did not further lower blood pressure.

SourcePenn State·JournalJournal of the American College of Nutrition·DateOct 4, 2010

Mayo Clinic finds upper, lower body gain weight differently

Researchers found that increased abdominal fat increases the risk of metabolic disease, while fat gain in the thighs lowers the risk. The study challenges the concept that the number of fat cells remains stable in adults and suggests a potential protective effect of lower-body fat cells.

SourceMayo Clinic·JournalProceedings of the National Academy of Sciences·DateOct 4, 2010

Vaccinations should continue as influenza pandemics epidemics wane

A new computer model predicts that vaccination can mitigate subsequent-wave mechanisms and reduce infection rates even when an epidemic appears to be waning. The model identified four potential mechanisms for a 'third wave' and showed that initiating vaccination earlier, increasing speed, and prioritizing subgroups can significantly re...

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateOct 4, 2010

Mechanism involved in addictions and some forms of obesity discovered in U of A lab

A University of Alberta research team has found a mechanism underlying both addiction and obesity, which could lead to new treatments for these diseases. The study revealed that dopamine plays a key role in the formation of spatial memories in the brain, and its release is associated with feelings of reward.

SourceUniversity of Alberta Faculty of Medicine & Dentistry·JournalProceedings of the National Academy of Sciences·DateOct 4, 2010

A step toward lead-free electronics

A new material has been found to have piezoelectric properties similar to lead zirconium titanate (PZT), a commonly used material in electronic devices. The development is significant as it could pave the way for 100% lead-free electronics, reducing toxicity and environmental concerns.

SourceUniversity of Leeds·JournalApplied Physics Letters·DateOct 4, 2010

Sleep loss limits fat loss

A recent study published in Annals of Internal Medicine found that sleep loss limits fat loss. When dieters got adequate sleep, they lost more than half of their weight as fat, but when they cut back on sleep, only one-fourth of their weight loss came from fat.

SourceUniversity of Chicago Medical Center·JournalAnnals of Internal Medicine·DateOct 4, 2010

Improving end-of-life care

A study in CMAJ highlights areas for improvement in end-of-life care in Canada, including emotional support, communication, and decision-making. Patients and families reported high satisfaction rates but identified key gaps in understanding end-stage care expectations and technological use at the end of life.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 4, 2010

Teen drunkenness levels converge across cultures, by gender

A study of 15-year-olds in seven Eastern European and 16 Western countries found that drunkenness levels increased in Eastern Europe and among girls, but decreased in Western countries and boys. This decline was attributed to changes in socioeconomic conditions and alcohol marketing practices.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateOct 4, 2010

A sing-song way to a cure for speech disorder

Speech-language pathology researchers at the University of Missouri are studying Hindustani and classical singing styles to develop a treatment for laryngeal tremors. By understanding the physiology behind voluntary and involuntary pitch fluctuation, they aim to find a cure for this vocal disorder associated with neurological disorders.

SourceUniversity of Missouri-Columbia·JournalJournal of Voice·DateOct 4, 2010

Disappearing glaciers enhanced biodiversity

A team of researchers found that retreating glaciers created a mosaic landscape with numerous islands, bays, and fiords, allowing new species to develop rapidly. The ancestors of these species survived the ice age in warmer regions, resulting in an exceptional biodiversity in southern Chile.

SourceKiel University·JournalGeology·DateOct 4, 2010

Ancient Colorado river flowed backwards

Researchers have found evidence of a 55-million-year-old river that flowed from California to Arizona and then into Utah, reversing the modern Colorado River's direction. The ancient California River, which formed a delta in Utah, was on a similar scale to the modern Colorado-Green River system but flowed northeastward.

Food allergies raise risk of asthma attacks

A study by National Jewish Health reveals that food allergies are more prevalent among people with asthma, especially in children, males and non-Hispanic blacks. The researchers found that peanut allergy was the most common food allergy, affecting 1.3% of the surveyed population.

SourceNational Jewish Health·JournalJournal of Allergy and Clinical Immunology·DateOct 4, 2010

Protecting embryos against microbes

Researchers at Kiel University found a unique antibacterial peptide in Hydra embryo that prevents benign bacteria from colonizing. This mechanism helps protect the embryo and potentially other organisms, altering the composition of bacterial colonization in adults as well.

SourceKiel University·JournalProceedings of the National Academy of Sciences·DateOct 4, 2010

Embargoed news from Annals of Internal Medicine

A new study found that dieters who slept 8.5 hours per night lost 56% more body fat compared to those who slept 5.5 hours, highlighting the importance of adequate sleep for weight maintenance. Researchers also discovered that sleep restriction increased ghrelin levels, leading to increased hunger and food intake.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateOct 4, 2010

Challenges and opportunities for improving community college student success

A University of Wisconsin-Madison researcher systematically examined 25 years of rigorous research to explain community college student success and identify remedies for dropouts. Key findings include the importance of institutional practices, federal and state resources, and incentives for college and student performance.

SourceAmerican Educational Research Association·JournalReview of Educational Research·DateOct 4, 2010

Child maltreatment investigations not associated with improvements in household risk factors

A study found that Child Protective Services (CPS) investigations for suspected child maltreatment are associated with increased household risk factors, including poverty and maternal depressive symptoms. However, CPS investigations were not linked to improvements in social support, family functioning, or common modifiable risk factors.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateOct 4, 2010

Children, males and blacks are at increased risk for food allergies

A new study estimates that 2.5% of the US population has food allergies, with higher rates found in children, non-Hispanic blacks, and males. The research also identifies an association between food allergy and severe asthma, highlighting the need for increased awareness and monitoring of these conditions.

SourceNIH/National Institute of Environmental Health Sciences·JournalJournal of Allergy and Clinical Immunology·DateOct 4, 2010