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Science News Archive 2009 - Page 163


Page 163 of 277

Intervention reduces delinquent teenage pregancy rates

A study conducted by Oregon State University found that a specialized foster care program reduced teen pregnancy rates among juvenile justice teens. The program, which involved one-on-one care in highly supervised homes, resulted in a 26% pregnancy rate compared to 47% for teens in group care.

SourceOregon State University·JournalJournal of Consulting and Clinical Psychology·DateJun 1, 2009

Who will pick up the bill?

The paper suggests measures to manage ocean acidification's impact on commercial fisheries, including flexible fishery management plans and support for fishing communities. Ocean acidification is expected to damage corals, mollusks, and shellfish, altering food webs and intensifying competition among predators.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateJun 1, 2009

JCI online early table of contents: June 1, 2009

Researchers have identified a mechanism by which influenza virus makes individuals more susceptible to secondary bacterial pneumonia. Type I IFNs, key mediators of the antiviral immune response, impair the ability to mount an adequate immune response to subsequent pneumonia-causing bacterial infection.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 1, 2009

ChIP-Seq, Drosophila targeted mutagenesis featured in Cold Spring Harbor Protocols

The article describes a new approach for targeted mutagenesis in Drosophila melanogaster using ChIP-Seq analysis. The SIRT method combines homologous recombination, site-specific integration, and bacterial recombineering to facilitate efficient genetic variants at specific loci. This novel technique enables researchers to investigate g...

SourceCold Spring Harbor Laboratory·JournalCold Spring Harbor Protocols·DateJun 1, 2009

Protein linked to mental retardation controls synapse maturation, plasticity, CSHL team finds

A team of neuroscientists at Cold Spring Harbor Laboratory has discovered the mechanism by which a signaling protein controls the maturation and strength of excitatory synapses. The study, led by Professor Linda Van Aelst, found that oligophrenin-1 stabilizes postsynaptic AMPA receptors, which is essential for proper synaptic function.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJun 1, 2009

Mobile health clinics: Saving lives and money

Researchers found that mobile health clinics decrease both the incidence and economic burden of preventable diseases, saving $36 in combined emergency department costs for every $1 invested. The model also showed a net profit to the healthcare system due to reduced costs and increased value of life years saved.

SourceBMC (BioMed Central)·JournalBMC Medicine·DateJun 1, 2009

Tai chi improves pain in arthritis sufferers

A systematic review and meta-analysis found that Tai Chi decreases pain in people with arthritis, improving physical function and quality of life. Additionally, it is an inexpensive, convenient, and enjoyable form of exercise that conveys psychological and social benefits.

SourceWiley·JournalArthritis Care & Research·DateJun 1, 2009

Researchers find breast cancer gene that's blocked by blood pressure drug

A study has identified a breast cancer gene called AGTR1 that is overexpressed in up to 20% of breast cancers and can be blocked by the blood pressure drug losartan. The researchers found that treatment with losartan shrunk tumors by 30% in mice, suggesting a potential new treatment option for women with AGTR1-positive breast tumors.

SourceMichigan Medicine - University of Michigan·JournalProceedings of the National Academy of Sciences·DateJun 1, 2009

Closing the gaps in the human genome

Researchers have developed a simple and scalable method to finish non-structural gaps in genome assemblies using 454 sequencing. The technique enables the targeting of class III gaps that are difficult to close with traditional cloning methods, with potential applications for other genomes.

SourceBMC (BioMed Central)·JournalGenome Biology·DateJun 1, 2009

Genes and smoking play role in rheumatoid arthritis

A new study found that all HLA-DRB1 shared epitope alleles strongly interact with smoking in conferring an increased risk of ACPA-positive RA. Smoking is identified as the main risk factor for developing rheumatoid arthritis, with a strong gene-environment interaction observed.

SourceWiley·JournalArthritis & Rheumatism·DateJun 1, 2009

New study finds lowfat chocolate milk is effective post-exercise recovery aid for soccer players

A new study finds that lowfat chocolate milk is an effective post-exercise recovery aid for soccer players, providing equal or superior muscle recovery compared to a high-carbohydrate recovery beverage. Chocolate milk's unique blend of protein and carbohydrates helps refuel exhausted muscles and reduce exercise-induced muscle damage.

SourceWeber Shandwick Worldwide·JournalMedicine & Science in Sports & Exercise·DateJun 1, 2009

Free music, sampled

A study by Yanbin Tu and Min Lu found that high-quality digital music samples are more effective in increasing consumer evaluation and willingness to pay. In contrast, low-quality samples with short durations discourage consumers from buying the full product.

SourceInderscience Publishers·JournalInternational Journal of Internet Marketing and Advertising·DateJun 1, 2009

Mosquito evolution spells trouble for Galapagos wildlife

Researchers discovered that the Galapagos giant tortoise and marine iguana are targeted by mosquitoes feeding on reptile blood, raising fears of devastating native wildlife diseases. The mosquito's adaptation to life in Galapagos could enable rapid spread of new diseases due to the islands' lack of immunity.

SourceUniversity of Leeds·JournalProceedings of the National Academy of Sciences·DateJun 1, 2009