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Science News Archive 2010 - Page 4


Page 4 of 283

Stress can enhance ordinary, unrelated memories

Researchers found that stress activates memory recall of unrelated experiences in laboratory rats, which may offer insights into post-traumatic stress disorder (PTSD) and related conditions. The study's results suggest that traumatic stress can reactivate non-traumatic memories, linking them to the traumatic experience.

SourceNew York University·JournalPLOS Biology·DateDec 21, 2010

Study identifies cells that give rise to brown fat

Scientists at Joslin Diabetes Center have identified progenitor cells in mouse white fat tissue and skeletal muscle that can be transformed into brown fat cells. The study found that exposure to the protein BMP-7 and the diabetes drug rosiglitazone increased conversion rates, suggesting a potential for cell-based brown fat therapies.

SourceJoslin Diabetes Center·JournalProceedings of the National Academy of Sciences·DateDec 20, 2010

Young female chimps treat sticks like dolls

A study of 14 years of observation of Kanyawara chimpanzees found that females tend to play with sticks more often than males and occasionally treat them like mother chimps caring for infants. This suggests a possible link between biological predilections and sex-stereotyped socialization in object play.

SourceCell Press·JournalCurrent Biology·DateDec 20, 2010

Dodds contributes to new national study on nitrogen water pollution

A new national study reveals that streams and rivers produce significantly higher greenhouse gas emissions than previously estimated, with nitrous oxide emissions from river networks making up at least 10 percent of human-caused emissions. This research highlights the importance of effective mitigation strategies to reduce nitrogen inp...

SourceKansas State University·JournalProceedings of the National Academy of Sciences·DateDec 20, 2010

Racial disparities evident in early-stage liver cancer survival

A recent study found racial disparities in liver cancer survival rates, with black patients experiencing higher mortality rates compared to white and Hispanic patients. Despite receiving similar treatments, black patients had a 12% increased rate of death, indicating poor access to care and subpar treatment outcomes.

SourceJAMA Network·JournalArchives of Surgery·DateDec 20, 2010

Most patients can speak and swallow after combination treatment for head and neck cancer

A recent study found that most patients with advanced head and neck cancer experience minimal residual speech and swallowing deficits following combined chemotherapy and radiation treatment. Factors associated with worse outcomes included being female, having a history of smoking, or a tumor in the hypopharynx or larynx.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateDec 20, 2010

Nasal congestion can mean severe asthma

A new study from the University of Gothenburg estimates that approximately 2% of the population in West Sweden suffers from severe asthma, which is characterized by nasal congestion. The study suggests that patients with nasal complaints should be investigated for asthma, as more pronounced symptoms may be linked to severe asthma.

SourceUniversity of Gothenburg·JournalRespiratory Research·DateDec 20, 2010