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Science News Archive May 2010 - Page 25


Page 25 of 26

Embargoed news from Annals of Internal Medicine

A study published in Annals of Internal Medicine found that human growth hormone (HGH) improves sprint capacity in healthy recreational athletes, with effects nearly doubled in men who also received testosterone injections. The researchers also noted significant reductions in fat mass but no increase in muscle mass.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateMay 3, 2010

Early childhood experiences have lasting emotional and psychological effects

Research on early childhood experiences shows that changes in these critical years can significantly impact children's future emotional and psychological well-being. Studies found prenatal exposure to nicotine linked to sleep problems, while antidepressant use during pregnancy associated with increased internalizing behaviors in children.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateMay 3, 2010

Purple is the new green

Researchers from the University of Miami have discovered that purple bacteria adapt their cell designs to different light intensities, maximizing energy conversion. Their study develops a mathematical model to describe this phenomenon and predicts optimal conditions for solar panels.

SourceUniversity of Miami·JournalPhysical Review Letters·DateMay 3, 2010

Resurrected mammoth blood very cool

Researchers have successfully recreated mammoth haemoglobin using ancient DNA from Siberian specimens. The team's findings reveal unique physiological adaptations that allowed mammoths to survive in harsh Arctic conditions, enabling them to cool their extremities and minimize heat loss.

SourceUniversity of Adelaide·JournalNature Genetics·DateMay 2, 2010

Families caught in the middle

Research found that 5% of low-income caregivers reported making trade-offs to pay for medical care, often at the expense of basic necessities like food and utilities. Children in these families were at increased risk of poor health, hospitalization, and developmental delays.

'Junk DNA' drives cancer growth

Researchers at University of Leeds and Charité University Medical School have discovered that 'junk' DNA promotes cancer cell growth in patients with Hodgkin's lymphoma. Long terminal repeats (LTRs) are a form of genetic material that can activate cancer genes, leading to the growth of cancer cells.

SourceUniversity of Leeds·JournalNature Medicine·DateMay 2, 2010

CSIRO telescope spots mega-star cradle

Researchers have discovered a massive cloud of cosmic gas and dust collapsing in on itself, which could help solve the mystery of massive star formation. The CSIRO radio telescope detected two types of molecules indicative of collapse, suggesting the gas is falling at an incredibly high rate.

SourceCSIRO Australia·JournalMonthly Notices of the Royal Astronomical Society·DateMay 2, 2010

Fighting fungal infections with bacteria

Researchers found that Pseudomonas aeruginosa bacteria can inhibit Candida albicans biofilm formation on silicone surfaces. This discovery could lead to the development of new antimicrobial drugs and additives to prevent hospital-acquired fungal infections.

SourceMicrobiology Society·JournalMicrobiology·DateMay 1, 2010