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Science News Archive 2013 - Page 11


Page 11 of 352

Discovered diversity of antiviral bacteria

Researchers have identified diverse strains of Wolbachia bacteria that offer strong antiviral protection against diseases like dengue, but may come with a cost to the host's lifespan. The study found that certain strains replicate more quickly and reach higher concentrations in flies, potentially reducing their lifespan.

SourceInstituto Gulbenkian de Ciencia·JournalPLOS Genetics·DateDec 16, 2013

Microprinting leads to low-cost artificial cells

Artificial cells manufactured via microprinting can mimic natural cell membranes, allowing researchers to study cellular processes. The creation of uniform-sized artificial cells with proteins and lipids enables high-throughput screenings for drug delivery and disease prevention.

SourcePenn State·JournalAdvanced Materials·DateDec 16, 2013

A universal RNA extraction protocol for land plants

A new RNA extraction protocol for land plants has been developed, allowing for the extraction of high-quality RNA from a wide variety of plant species and tissue types. This protocol will greatly facilitate RNA-based studies of non-model plant species and enable comparative analyses of transcriptomes across diverse lineages.

SourceBotanical Society of America·JournalAmerican Journal of Botany·DateDec 16, 2013

The effects of sequestration on Indian health

A new commentary highlights the devastating impact of sequestration on the Indian Health Service, perpetuating longstanding health care disparities. Funding cuts lead to rationing of services, contributing to a 4.1-year gap in life expectancy compared to mainstream Americans, with alarming rates of alcoholism, diabetes, and mortality.

SourceThe Hastings Center·JournalHastings Center Report·DateDec 16, 2013

Pitt study: Lung lesions of TB variable, independent whether infection is active or latent

A new animal study led by researchers at the University of Pittsburgh School of Medicine found that TB lung lesions are surprisingly variable and independent of each other, regardless of whether the patient has clinically active or latent disease. The findings could point the way to new vaccines to prevent the hard-to-treat infection.

Climate change will endanger caribou habitat, study says

A study published in Nature Climate Change suggests that climate change will endanger the habitat of caribou, a species already threatened by the loss of critical lichen-rich environments. The research, led by University of Calgary professor Marco Musiani, analyzed DNA from reindeer and caribou populations across North America and Europe.

SourceUniversity of Calgary·JournalNature Climate Change·DateDec 15, 2013

Regular exercise in middle age protects against muscle weakness later in life

A cross-sectional study by Tokyo University found exercising in middle age is a protective factor against sarcopenia and effective in maintaining muscle strength and physical performance. The prevalence of sarcopenia was higher with increasing age, but exercise habits in middle age were significantly associated with lower risk.

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·DateDec 14, 2013

Hong Kong study shows lower survival rates after second hip fractures

A Hong Kong-based study found that 75% of second hip fractures occurred within 4 years of the initial fracture, with female patients experiencing a higher incidence. The study also revealed lower survival rates after a second hip fracture, with median survival times of 3 years and 8 months compared to 4 years and 10 months after the fi...

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·DateDec 14, 2013

UCSF research finds new link between obesity, early decline in kidney function

A new UCSF-led study reveals that body mass index significantly increases the risk of developing chronic kidney disease, even before other obesity-related diseases emerge. Healthy kidneys play a vital role in various bodily functions, and the research emphasizes the importance of intervening early in life with obese patients.

SourceUniversity of California - San Francisco·JournalAmerican Journal of Kidney Diseases·DateDec 13, 2013

Changing chemo not beneficial for metastatic B.C. patients with elevated circulating tumor cells

A phase III clinical trial found that switching to a different chemotherapy did not improve overall survival or time to progression for women with metastatic breast cancer and elevated circulating tumor cells. Patients with low CTCs before starting chemotherapy had a median overall survival of 35 months, while those with elevated CTCs ...

Clot-busters, caught on tape

Researchers used high-speed photography to study how ultrasound-stimulated microbubbles dissolve killer blood clots. The team found that the bubbles deform the clots' boundaries before burrowing into them, creating fluid-filled tunnels that break up the clots from the inside out.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateDec 13, 2013

Strobe glasses improve hockey players' performance

A Duke University study found that strobe glasses improved hockey players' performance by forcing their visual system to train in difficult conditions. The glasses produced stroboscopic visual conditions, resulting in an 18% improvement in on-ice skills and demonstrating potential benefits for sports performance.

SourceDuke University·JournalAthletic Training & Sports Health Care·DateDec 13, 2013