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Science News for August 15, 2005


No small feat: First ever gene therapy success for muscular dystrophy achieved

Researchers at the University of Pittsburgh Medical Center have successfully treated animals with muscular dystrophy using a miniature gene and new systemic approach, demonstrating significant improvements in muscle function and longevity. The treatment involves delivering a mini-agrin gene via adeno-associated virus vectors, restoring...

SourceUniversity of Pittsburgh Medical Center·JournalProceedings of the National Academy of Sciences·DateAug 15, 2005

Scientists harness the power of pee

Researchers have developed a paper battery that harnesses the power of urine to test for diseases, providing a cheap and efficient solution for healthcare diagnostics. The device can be integrated into biochip systems, enabling people to monitor their health at home without relying on external power sources.

SourceIOP Publishing·JournalJournal of Micromechanics and Microengineering·DateAug 15, 2005

Ships bring alien jellyfish invaders to our shores

Researchers used genetic data and computer simulations to reveal that moon jellyfish migration post-dates European global shipping and trade. The study found that up to 23% of marine species in international harbors are non-indigenous, posing threats to ecosystems and causing billions of dollars in damage.

SourceUniversity of New South Wales·JournalProceedings of the National Academy of Sciences·DateAug 15, 2005

Role of microRNA identified in breast cancer

A study from Ohio State University's Comprehensive Cancer Center discovered a set of microRNAs that can distinguish between normal and cancerous breast tissue. The findings suggest that microRNA expression is correlated with breast cancer's hormone status, metastatic potential, and proliferative rate.

SourceOhio State University·JournalCancer Research·DateAug 15, 2005

Young athletes ignore skin cancer risk

A recent study by Dr. Brian Adams found that 85% of NCAA soccer players and cross-country runners did not use sunscreen during practice, despite being at high risk for sun-related skin cancer. The American Cancer Society estimates that most cases of nonmelanoma skin cancer diagnosed yearly in the US are sun-related.

SourceUniversity of Cincinnati·JournalJournal of the American Academy of Dermatology·DateAug 15, 2005

Recovering alcoholic smokers can quit second addiction

A new study from the Mayo Clinic found that smokers with a history of alcoholism can quit smoking using customized nicotine replacement therapy. The study, which adjusted nicotine patch dosages based on serum cotinine levels, resulted in a tobacco abstinence rate of 51 percent.

SourceMayo Clinic·JournalJournal of Studies on Alcohol·DateAug 15, 2005

A novel method to propagate stem cells

Researchers have created a novel method to propagate mouse brain stem cells, which can either multiply without differentiating or become normal brain cells at the flip of a genetic switch. The technique combines epidermal growth factor and fibroblast growth factor to promote cell growth, enabling scientists to study basic properties an...

SourcePLOS·JournalPLOS Biology·DateAug 15, 2005

New insights into the early development of diabetes and the link to obesity

A study published in PLoS Medicine found that insulin resistance, a key factor in type 2 diabetes, develops early in life and is linked to weight gain. The researchers studied children of diabetic parents and found that insulin-resistant individuals have impaired energy production in muscle cells, leading to weight maintenance problems.

SourcePLOS·JournalPLOS Medicine·DateAug 15, 2005

Babies detect unfamiliar music rhythms easier than adults

Research suggests that babies are more flexible in perceiving musical rhythms than adults, which may be due to their developing brains being less biased by cultural norms. By 12 months old, however, infants' abilities to detect rhythmic patterns in foreign music decrease significantly.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateAug 15, 2005

Robotic gastric bypass surgery shows promise

Researchers report on the first 10 patients to undergo totally robotic laparoscopic Roux-en-Y gastric bypass surgery, achieving comparable surgical times and complication rates with a short learning curve. The study suggests that robotic technology is feasible and safe for this procedure, potentially offering a superior alternative.

SourceJAMA Network·JournalArchives of Surgery·DateAug 15, 2005

Study points the way to more nutritious animal feed

Researchers at Duke University Medical Center have developed a way to reduce phytate levels in animal feed, making it more nutritious. By understanding the biochemical pathway of phytate synthesis in plants, they were able to create low-phytate strains of feed grains that could improve nutrition and reduce environmental pollution.

SourceDuke University Medical Center·JournalProceedings of the National Academy of Sciences·DateAug 15, 2005