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Science News Archive June 2008 - Page 9


Page 9 of 21

Falls, depression and antidepressants in later life

A study found that depression and antidepressants significantly increase the risk of falls among older people. SSRIs were associated with a 66% higher risk of falls. Effective prevention programs include home assessments and modifications to reduce hazards. Family members must be involved in fall prevention strategies.

SourcePLOS·JournalPLOS ONE·DateJun 17, 2008

How female chimps call off the competition

Chimpanzee females employ copulation calls strategically to minimize social competition, particularly with other females. This behavioral adaptation allows them to secure the protective support of high-ranking males, thereby reducing risks associated with female-female competition.

SourcePLOS·JournalPLOS ONE·DateJun 17, 2008

Stowers Institute's Shilatifard Lab identifies new role for factor critical to transcription

The Shilatifard Lab discovered that ELL plays a critical role in regulating gene expression by causing temporary interruptions of Pol II transcription in fruit flies. This finding has implications for understanding the pathogenesis of childhood leukemia and developing targeted therapeutics.

SourceStowers Institute for Medical Research·JournalProceedings of the National Academy of Sciences·DateJun 17, 2008

Age at puberty linked to mother's prenatal diet

A study published by The Endocrine Society found that a mother's prenatal diet high in fat can lead to an early onset of puberty in her child, increasing the risk of adulthood obesity. The research also showed alterations in sex hormones and higher body fat levels in adult offspring.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJun 16, 2008

Olfactory bulb size may change as sense of smell changes

Research reveals that olfactory bulb volume changes in response to individual sense of smell changes. Patients with reduced or lost sense of smell show varying increases and decreases in olfactory bulb size. The correlation between olfactory bulb volume and function may aid in predicting disease prognosis.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateJun 16, 2008

Health varies widely across different regions of Mexico

A new study found that Mexico's southern region has the highest rates of infectious and nutritional diseases, as well as non-communicable diseases such as heart disease and diabetes. The study also identified being overweight, high blood glucose, and alcohol use as major risk factors for these diseases.

SourcePLOS·JournalPLOS Medicine·DateJun 16, 2008

Better treatments for malaria in pregnancy are needed

A recent study highlights the need for better treatments for malaria in pregnancy, where the use of new medicines is often restricted due to limited clinical data. The authors argue that this 'catch-22' situation can lead to inferior drugs being prescribed, putting pregnant women's lives at risk.

SourcePLOS·JournalPLOS Medicine·DateJun 16, 2008

The APCs of nerve cell function

Researchers at Tufts University School of Medicine identify adenomatous polyposis coli (APC) as a central organizer of neuronal cholinergic synapse assembly. This discovery sheds light on the mechanisms directing synapse formation, potentially shedding new insights into learning and memory disorders such as Alzheimer's disease and schi...

SourceTufts University, Health Sciences Campus·JournalMolecular and Cellular Neuroscience·DateJun 16, 2008

A trio of super-Earths

A team of European astronomers has discovered a triple system of super-Earths around the star HD 40307 using the HARPS instrument. The planets have masses between 4.2 and 9.4 times that of Earth, and orbit the star with periods ranging from 4.3 to 20.4 days.

SourceESO·DateJun 16, 2008