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Science News Archive April 2014 - Page 22


Page 22 of 32

Reef fish arrived in 2 waves

A new study reveals that reef fish diversified into two distinct groups of fish, with the first group arriving around 70-90 million years ago, during a time when coral reefs were built by mollusks called rudists. By 50 million years ago, modern coral reefs and their inhabitants had largely taken shape.

Extinct carnivorous marsupial may have hunted prey larger than itself

Scientists reconstructed the skull of Nimbacinus dicksoni and found that it had a high bite force for its size, suggesting it could hunt vertebrate prey exceeding its own body mass. The research suggests that Nimbacinus dicksoni was an opportunistic hunter with potential prey including birds, frogs, and other marsupials.

SourcePLOS·JournalPLOS ONE·DateApr 9, 2014

Love is a many-faceted thing

Researchers found that regular churchgoers, married people, and those with harmonious social ties are most satisfied with their love lives. The study also revealed that education does not impact love life satisfaction but religious involvement does, with believers having positive attitudes towards their relationships.

SourceSpringer·JournalApplied Research in Quality of Life·DateApr 9, 2014

TGen identifies growth factor receptors that may prompt metastatic spread of lung cancer

A study by TGen found that specific growth factor receptors, HGFR/MET and FN14, are elevated in metastatic tumors of non-small cell lung cancer (NSCLC). Suppression of these receptors reduces tumor cell invasion. These findings suggest new targets for therapy to prevent or halt the spread of this deadly cancer.

SourceThe Translational Genomics Research Institute·JournalClinical & Experimental Metastasis·DateApr 9, 2014

Older people with faster decline in memory/thinking skills may have lower risk of cancer death

A study published in Neurology found that older adults with rapid memory and thinking skills decline may be less likely to die from cancer. The research followed over 2,600 participants aged 65 and above for nearly 13 years and found a significant difference in cancer mortality rates between those with fast versus slow cognitive decline.

SourceAmerican Academy of Neurology·JournalNeurology·DateApr 9, 2014

Physical function and sense of autonomy determine life-space mobility in older people

Research conducted by Erja Portegijs and colleagues found that physical function and sense of autonomy are independent determinants of life-space mobility in older people. Life-space mobility, which reflects an individual's opportunities to participate in society, is affected by both physical limitations and psychological factors.

SourceAcademy of Finland·JournalJournal of the American Geriatrics Society·DateApr 9, 2014

Most schools meet USDA drinking water mandate; more steps needed to encourage consumption

A new study found that most schools in the US meet the USDA drinking water mandate, but additional measures are needed to promote better access and encourage students to drink more water. The study suggests that collaboration among school staff and educational activities can be effective strategies to promote water consumption.

SourceElsevier Health Sciences·JournalJournal of the Academy of Nutrition and Dietetics·DateApr 9, 2014

Pharma firms turn attention to hearing loss

The pharmaceutical industry is turning its attention to hearing loss, a condition affecting 36 million Americans. Researchers are developing potential therapies targeting the inner ear and central nervous system, with several drug candidates already advancing through clinical testing.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateApr 9, 2014

Age does not predict success for those in court-based mental health treatment programs

New research by Kelli Canada finds that older adults in mental health courts experience the same substance use and housing instability as younger adults, challenging assumptions about age as a protective factor. This study highlights the need for tailored assessments and effective treatment plans to address the unique needs of older ad...

SourceUniversity of Missouri-Columbia·JournalAmerican Journal of Geriatric Psychiatry·DateApr 9, 2014

Synthetic collagen promotes natural clotting

Researchers at Rice University have developed a synthetic collagen, KOD, that mimics the body's natural collagen to promote natural clotting and heal surgical wounds. Lab tests showed KOD hydrogel traps red blood cells to stop bleeding and binds platelets to form clots, improving upon commercial hemostats.

SourceRice University·JournalBiomacromolecules·DateApr 9, 2014

Spike in postoperative cardiac surgery deaths may be linked to 30-day survival measurement

A study analyzing national hospital data found a significant increase in postoperative cardiac surgery deaths at the 30-day mark, suggesting an unintended consequence of prioritizing this measurement. The researchers suggest that emphasizing 30-day survival as a key metric may lead to delayed end-of-life decisions and unnecessary treat...

SourceJohns Hopkins Medicine·JournalHealth Services Research·DateApr 9, 2014

Polysaccharides from Angelica sinensis alleviate oxidative damage to neurons

Polysaccharides from Angelica sinensis have been shown to protect PC12 neuronal cells from H2O2-induced cytotoxicity, reduce apoptosis and intracellular reactive oxygen species levels, and increase mitochondrial membrane potential. In a rat model of local cerebral ischemia, Angelica sinensis polysaccharides enhanced antioxidant activit...

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateApr 9, 2014

Green is good

Researchers at the University of Iowa have discovered a natural compound in green tomatoes that stimulates muscle growth and protects against muscle wasting. Tomatidine, found in green tomatoes, generates changes in gene expression opposite to those that occur in muscle cells affected by muscle atrophy.

SourceUniversity of Iowa Health Care·JournalJournal of Biological Chemistry·DateApr 9, 2014