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Science News Archive 2008


Page 1 of 240

Seizing the day

A new study from Tel Aviv University found that occupational stress has no effect on epilepsy attacks, with a large sample size allowing for high predictive power. The research benefits those who have been seizure-free for a long period of time, showing they are likely to stay seizure-free.

Bright lights, not-so-big pupils

A team of Johns Hopkins neuroscientists has discovered a new type of light sensor in the eye that detects light and communicates with the brain. These melanopsin-containing cells are insensitive to light, but their signal is large enough to influence the brain when activated by multiple photons.

SourceJohns Hopkins Medicine·JournalNature·DateDec 31, 2008

The culture of medicine

A new Brandeis University study reports that academic medicine faces a toxic culture leading to faculty burnout and disconnection, affecting patient care and professional relationships. The study identifies serious problems with relational culture, competitive individualism, and deprecation among medical faculty members.

SourceBrandeis University·JournalAcademic Medicine·DateDec 31, 2008

Fewer deaths with preventive antibiotic use

Researchers found that administering antibiotics as a preventive measure to patients in intensive care units increases their chances of survival, with a reduction of 3.5% in ICU deaths. The study involved nearly 6,000 patients and showed that using antibiotics resulted in fewer deaths compared to standard ICU care.

SourceUniversity Medical Center Utrecht·JournalNew England Journal of Medicine·DateDec 31, 2008

Tips from the American Journal of Pathology

Researchers found that irradiation damages fat tissue in mice, reducing its weight and size, and altering its ability to support reconstruction. Additionally, a study on multiple sclerosis found that CXCL1 decreases disease severity by promoting remyelination. A new molecule, FPR-2, has been identified as a potential anti-inflammatory ...

SourceAmerican Journal of Pathology·JournalAmerican Journal Of Pathology·DateDec 30, 2008

Few DNA repair genes maintain association with cancer in field synopsis

A comprehensive review of 241 gene variants and cancer risk identified only two statistically significant associations, including an XRCC1 allele and ERCC2 allele linked to lung cancer. The findings suggest that genetic risks are typically modest, and large-scale evidence is needed to establish specific associations.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 30, 2008

Safe new therapy for genetic heart disease

A new clinical trial suggests that long-term use of candesartan may significantly reduce symptoms of genetic heart disease, including left ventricular hypertrophy. The study found no adverse effects of candesartan use and highlights the need for customized treatment protocols based on individual patient gene mutations.

SourceAmerican Journal of Pathology·JournalJournal of Molecular Diagnostics·DateDec 30, 2008

Vitamins C and E and beta carotene again fail to reduce cancer risk in randomized controlled trial

A randomized controlled trial found that women taking vitamin C, E, or beta carotene had a similar risk of cancer as those not taking the supplements. Antioxidant supplements were previously thought to lower cancer risk due to high fruit and vegetable intake, but this study contradicts those findings.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 30, 2008

Young blood fights cancer

Researchers at Tel Aviv University discovered that transfusions of 'young' blood –– blood stored for less than 9 days –– increased the odds of survival in animals with leukemia and breast cancer. Fresh blood may be a game-changer in cancer treatment, potentially improving survival rates.

SourceAmerican Friends of Tel Aviv University·JournalAnesthesiology·DateDec 30, 2008

Also in the Dec. 30 JNCI

Research suggests cisplatin ototoxicity is due to higher platinum concentration in inner ear, while high insulin levels are an independent risk factor for breast cancer. Studies found significant correlations between fasting insulin and increased breast cancer risk.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 30, 2008

Grazing animals help spread plant disease

Researchers found that grazing animals like deer and rabbits increase the prevalence of a viral plant disease by promoting the growth of aphid-preferred annual grasses. This study challenges previous theories suggesting that herbivores help contain or reduce disease, highlighting the complexity of natural ecosystems.

SourceOregon State University·JournalProceedings of the National Academy of Sciences·DateDec 29, 2008

Can't chalk it up to 'baby fat'

A new study published in Pediatrics reveals that only 10% of overweight children receive a proper diagnosis, while 76% of severely obese children and 54% of obese children are accurately identified. The study emphasizes the need for early intervention and innovative solutions to improve pediatric weight detection.

SourceCase Western Reserve University·JournalPEDIATRICS·DateDec 29, 2008

Global structures of the DE3 tide

Researchers found that the DE3 tide can propagate above 100km and exhibits a 2-year cycle oscillation. The tidal signal was analyzed using TIMED mission data, revealing two dominant Hough modes with annual unimodal distribution.

SourceScience China Press·JournalChinese Science Bulletin·DateDec 29, 2008

University of Maryland researchers identify common gene variant linked to high blood pressure

A study by University of Maryland researchers has identified a common gene variant associated with an increased risk of developing high blood pressure. The STK39 gene produces a protein that helps regulate salt processing in the kidneys, which plays a key role in determining blood pressure.

SourceUniversity of Maryland Medical Center·JournalProceedings of the National Academy of Sciences·DateDec 29, 2008

New use for human hair

A recent study found that adding human hair waste cubes to commercial growth medium can increase plant yields relative to untreated controls. However, results showed lower yields compared to inorganic fertilizers, suggesting hair waste should not be used as a single source for fast-growing crops like lettuce.