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Science News Archive 2005 - Page 64


Page 64 of 165

Gene loss accelerates aging

Researchers have discovered that the loss of the p63 gene accelerates aging in mice, leading to hair loss, reduced fitness and body weight, progressive curvature of the spine, and a shortened lifespan. This study suggests that p63 plays a fundamental role in maintaining health and preventing cancer.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateAug 16, 2005

U of M researchers show that increasing sugar processing in the liver can lower blood sugar

Researchers at the University of Minnesota have found that increasing fructose-2,6-bisphosphate in the liver can decrease blood sugar levels in mice. This process may also lead to weight loss by reducing food intake and increasing energy expenditure. The study's findings could potentially lead to new treatments for diabetes and obesity.

SourceUniversity of Minnesota·JournalCell Metabolism·DateAug 16, 2005

Other highlights in the August 17 JNCI

Researchers found that screen-detected breast cancers tend to have better prognoses than clinically detected ones, but may not lead to lower mortality. Meanwhile, patients on cetuximab therapy are at risk of hypomagnesemia and require magnesium supplementation. Additionally, men with Klinefelter syndrome may be more likely to develop c...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 16, 2005

Driving metastasis

Researchers found RhoC essential for tumor metastasis, but dispensable for embryonic development and tumor initiation. RhoC-deficient mice display reduced tumor metastasis, lower cell motility, and survival properties in secondary sites.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateAug 16, 2005

Weight control protein may yield antiobesity drugs

Researchers found that SH2-B regulates leptin sensitivity, energy balance, and body weight in mice, leading to obesity and metabolic syndrome. The study identifies SH2-B as a critical component in maintaining leptin sensitivity, potentially serving as a therapeutic target for treating obesity and type 2 diabetes

SourceCell Press·JournalCell Metabolism·DateAug 16, 2005

New analytical tool helps detect cancer

Researchers at Ames Laboratory developed a method called dynamic multiple equilibrium gradients (DMEG) that enables hyperselective separation and concentration of specific analytes. This advancement allows for the detection of smallest substance traces, including estrogen-derived conjugates and DNA adducts in human fluid samples, poten...

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