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Science News Archive 2012 - Page 35


Page 35 of 333

JCI early table of contents for Nov. 19, 2012

Researchers identify new therapeutic approaches for acute myeloid leukemia (AML), find immune cells defective in Huntington's disease, and discover signaling pathways contributing to muscle weakness in myotonic dystrophy. Targeting C/EBPG and C/EBPA, or normalizing GSK3β activity may help treat these conditions.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2012

A code of silence in acute myeloid leukemia

A study published in the Journal of Clinical Investigation found that a transcriptional regulator called C/EBPG was highly expressed in AML samples with an epigenetically silenced C/EBPA gene. By blocking this epigenetic modification, researchers were able to reduce C/EBPG and restore normal myeloid blood cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2012

Comments, traffic statistics help empower bloggers

Researchers found that female bloggers enjoyed blogging due to feelings of empowerment and community connection. Site metrics like traffic visitors and comments predicted continued interest in blogging. Bloggers who felt a strong sense of agency were more influential.

SourcePenn State·JournalJournal of Computer-Mediated Communication·DateNov 19, 2012

Experimental drug improves memory in mice with multiple sclerosis

Researchers have identified a key biochemical marker for cognitive impairment in MS brains and developed an experimental compound to manipulate it, improving learning and memory in mice. The finding has the potential to speed development of new drugs for treating cognitive impairment in MS patients and those with Alzheimer's disease.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateNov 19, 2012

Stress management counselling in the primary care setting is rare

Only three percent of patients receive stress management counselling, highlighting the need for restructuring primary care delivery to include this crucial service as prevention. Stress management counseling is associated with longer office visits, underscoring the importance of providing this support earlier in the disease process.

SourceBeth Israel Deaconess Medical Center·JournalArchives of Internal Medicine·DateNov 19, 2012

Singular polymer, multiple functions

Researchers at the University of Akron have developed a biocompatible polymer structure that can fight infection, filter water, and perform various healing functions. The system can be fabricated and specialized to meet specific needs, offering versatility and convenience.

SourceUniversity of Akron·JournalJournal of the American Chemical Society·DateNov 19, 2012

Multiple sclerosis 'immune exchange' between brain and blood is uncovered

Researchers at UCSF discover an 'immune exchange' between the brain and blood that allows disease-causing B cells to move in and out of the brain, providing a potential key to unlocking better treatments and diagnostics. The study suggests that targeting specific B cells could lead to precision therapies tailored to each patient's needs.

SourceUniversity of California - San Francisco·JournalJournal of Clinical Investigation·DateNov 19, 2012

No elevated 10-year risk of heart disease for people who become ill during a large E. coli outbreak

A new study published in Canadian Medical Association Journal found no elevated 10-year risk of heart disease for people who became ill during the Walkerton E. coli O157:H7 outbreak. The study involved 898 adults who consumed polluted drinking water and monitored their cardiovascular health over time.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 19, 2012

Rice unveils super-efficient solar-energy technology

Rice University scientists have developed a super-efficient solar-energy technology that converts sunlight into steam directly, with an overall energy efficiency of 24 percent. The 'solar steam' method uses nanoparticles to heat water instantly vaporizing it and creating steam from nearly frozen water.

SourceRice University·JournalACS Nano·DateNov 19, 2012

Smoking in pregnancy tied to lower reading scores

Researchers at Yale University have found that smoking during pregnancy is associated with lower reading scores in children. The study analyzed data from over 5,000 children and found that those exposed to high levels of nicotine scored 21% lower on reading accuracy and comprehension tasks.

SourceYale University·JournalThe Journal of Pediatrics·DateNov 19, 2012

After 121 years, identification of 'grave robber' fossil solves a paleontological enigma

After 121 years, researchers have correctly identified the 'grave robber' fossil as a unique branch in the evolutionary tree. The discovery pushes back the endpoint for the fossil's lineage by 45 million years and shows that this family of mammals survived the extinction event that marked the end of the Age of Dinosaurs.

SourceCarnegie Museum of Natural History·JournalProceedings of the National Academy of Sciences·DateNov 19, 2012

A 3-D light switch for the brain

Scientists have developed a new tool that can deliver precise points of light to a 3-D section of living brain tissue, allowing for unprecedented control over individual neurons. This technology, called optogenetics, has the potential to treat conditions such as Parkinson's disease and epilepsy.

SourceOptica·JournalOptics Letters·DateNov 19, 2012

Kids with psoriasis likely to be obese or overweight

A large international study shows that children with psoriasis are twice as likely to be overweight or obese as healthy children, and US children with severe psoriasis have four times the odds. Lifestyle interventions, such as increasing exercise and decreasing caloric intake, are crucial to reducing the risk of metabolic diseases.

SourceNorthwestern University·JournalArchives of Dermatology·DateNov 19, 2012

Many seniors' sleep habits are similar to those of young adults, study suggests

A recent study reveals that more than half of retired people aged 65 and over report sleeping at least 7.5 hours per night, contradicting common stereotypes about elderly sleep patterns. The study, led by Timothy H. Monk, Ph.D., found that most seniors do not have reliably earlier bedtimes than younger adults and often experience dayti...

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalHealthy Aging & Clinical Care in the Elderly·DateNov 19, 2012