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Science News for September 26, 2013


Echocardiography detecting many more cases of definite and borderline rheumatic heart disease, meaning true global prevalence likely to much higher than current estimates

A study published in Global Heart finds that echocardiography is increasing detection rates of definite and borderline rheumatic heart disease globally. Using echocardiography increases detection rates by many-fold, revealing a higher true global prevalence than current estimates.

SourceWorld Heart Federation·JournalGlobal Heart·DateSep 26, 2013

Study examines health of kidney donors

A recent study examining the health of kidney donors has found that complications and hospital length-of-stay have declined since 1998. The researchers studied over 69,000 living kidney donors between 1998 and 2010, finding that rates of complications and length-of-stay for donors were comparable with other low-risk abdominal surgeries.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateSep 26, 2013

A genetic map for complex diseases

Scientists from the University of Chicago have developed a unique genetic map that identifies associations between single-gene diseases and complex diseases. The study analyzed over 120 million patient records and found statistically significant correlations between 2,909 disease pairs, including previously unknown comorbidities such a...

Do beetles have maternal instincts?

Researchers found evidence of maternal care in eight species of Chrysomelinae beetles, including defense mechanisms against predators and parasitoids. The study reveals complex subsocial behaviors and provides insight into the natural history of these insects.

SourcePensoft Publishers·JournalZooKeys·DateSep 26, 2013

Scientists rig hospital-grade lightweight blood flow imager on the cheap

Researchers at the University of Texas at Austin have created a biological imaging system that can track blood flow in the lab and clinic using a webcam and laser pointer. The new system is significantly cheaper than existing equipment and has potential applications for imaging changes in tissues, including those outside the lab.

SourceOptica·JournalBiomedical Optics Express·DateSep 26, 2013

Getting better together: New study looks at shared medical decision making

A recent study found that using DVDs, booklets, and health coaches can help patients arrive at an informed treatment decision within their first visit with an orthopaedic surgeon. The study showed a significant increase in patient confidence in knowing what questions to ask their doctor, leading to better shared medical decision making.

SourceAmerican Academy of Orthopaedic Surgeons·JournalJournal of Bone and Joint Surgery·DateSep 26, 2013

Debt linked to mental health problems

A study published in Clinical Psychology Review found that people in debt are three times more likely to experience mental health problems than those not in debt. The research, led by the University of Southampton, analyzed data from nearly 34,000 participants and showed a strong correlation between debt and poor mental health outcomes.

SourceUniversity of Southampton·JournalClinical Psychology Review·DateSep 26, 2013

Without a trace

Scientists at EMBL found that cells in a zebrafish embryo determine their direction by erasing the path behind them and creating a self-generated chemokine gradient. This finding could have implications for development, cancer, and metastasis.

Abuse, lack of parental warmth in childhood linked to multiple health risks in adulthood

A new UCLA-led study examines the effects of childhood abuse and lack of parental affection across the body's entire regulatory system. The research finds a strong biological link between negative early life experiences and physical health, with parental warmth offering protection against these effects.

SourceUniversity of California - Los Angeles Health Sciences·JournalProceedings of the National Academy of Sciences·DateSep 26, 2013

Tick tock: Marine animals with at least 2 clocks

Research reveals that marine animals have multiple independent clocks, including a 24-hour circadian clock and a tidal clock that regulates daily cycles. The findings suggest that these clocks may be standard operating equipment in animals, with the tidal clock playing a crucial role in coastal organisms.

SourceCell Press·JournalCurrent Biology·DateSep 26, 2013

Colonizing songbirds lost sense of syntax

Researchers found that as European songbirds colonized islands, their songs became less structured. The study suggests a genetic component to the loss of syntax, and may be due to the effects of small population sizes on cultural transmission.

SourceDuke University·JournalCurrent Biology·DateSep 26, 2013

The spliceosome: More than meets the eye

Researchers from Brandeis University and UMMS discovered that the spliceosome's major components can attach in any order, eliminating the need for precise communication. This breakthrough sheds light on the process of RNA splicing, a crucial step in protein synthesis, and holds promise for understanding diseases like cystic fibrosis.

SourceBrandeis University·JournalCell·DateSep 26, 2013

Scripps research institute scientists discover important wound-healing process

Researchers at Scripps Research Institute discovered a critical role of dendritic epidermal T cells in producing interleukin-17A to promote wound healing. The study found that these skin-resident immune cells function as 'first responders' to skin injuries by producing IL-17A, which wards off infection and promotes wound healing.

SourceScripps Research Institute·JournalJournal of Clinical Investigation·DateSep 26, 2013