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Science News Archive 2009 - Page 144


Page 144 of 277

ATS, ERS jointly issue asthma assessment guidelines

The American Thoracic Society and European Respiratory Society have released standardized definitions and measurement recommendations for assessing asthma control, severity, and exacerbations. The guidelines provide a framework for clinicians to diagnose and manage asthma, with a focus on improving patient outcomes.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJun 25, 2009

Good males are bad fathers

A new study on seed beetles reveals that low genetic quality males are more successful in fertilizing eggs, contrary to predictions. Females' multiple mating does not guarantee the sperm of the highest genetic male.

SourceUppsala University·JournalScience·DateJun 25, 2009

Study challenges routine use of MRI scans to evaluate breast cancer

A study of 577 breast cancer patients found that routine use of MRI scans was associated with delays in starting treatment and increased mastectomy rates. The study suggests that more research is needed to determine the benefits of MRI scans in evaluating breast cancer, as their disadvantages may outweigh any potential advantages.

SourceFox Chase Cancer Center·JournalJournal of the American College of Surgeons·DateJun 25, 2009

Your arteries on Wonder Bread

A new study from Tel Aviv University shows that high glycemic index foods, such as cornflakes and white bread, can cause sudden expansion of artery walls, leading to reduced elasticity and increased heart disease risk. The research provides a new mechanism for understanding how these foods affect the progression of heart disease.

SourceAmerican Friends of Tel Aviv University·JournalJournal of the American College of Cardiology·DateJun 25, 2009

What should a teenage girl do if she finds a lump in her breast?

A recent study published in the American Journal of Roentgenology suggests that breast ultrasound examinations can eliminate the need for excisional biopsies in many cases. The study found that 15 out of 21 lumps were benign and did not require biopsy, highlighting the potential benefit of using ultrasound as a diagnostic tool.

SourceLoyola Medicine·JournalAmerican Journal of Roentgenology·DateJun 25, 2009

UCSF commentators call for health reform to revitalize primary care

Researchers at UCSF advocate for a nationwide Primary Care Cooperative Extension Service to support primary care clinicians and address the shortage of physicians. The service would provide infrastructure for practice transformation through local learning communities, information exchange, and cross-fertilization of ideas among practices.

SourceUniversity of California - San Francisco·JournalNew England Journal of Medicine·DateJun 24, 2009

Pediatric acute lymphoblastic leukemia is curable without preventive cranial radiation

A recent study published in the New England Journal of Medicine reveals that personalized chemotherapy regimens can effectively treat childhood acute lymphoblastic leukemia (ALL) without cranial radiation. The study, conducted by researchers at St. Jude Children's Research Hospital, found a cure rate of 90% for all patients, with impro...

SourceSt. Jude Children's Research Hospital·JournalNew England Journal of Medicine·DateJun 24, 2009

Neurological differences support dyslexia subtypes

Researchers used MRI to compare brains of 38 people with dyslexia to a typical brain model, revealing differences in the right cerebellar declive and lentiform nucleus associated with varying language performance. These findings suggest different neuro-cognitive pathologies underlying dyslexia subtypes.

SourceBMC (BioMed Central)·JournalBMC Neuroscience·DateJun 24, 2009

Lasers can lengthen quantum bit memory by 1,000 times

Researchers at the University of Michigan have discovered a method to prolong quantum bit memory by utilizing lasers. By exciting the quantum dot with a laser, scientists were able to block magnetic field interactions and stabilize the magnetic field, resulting in a significant increase in stable existence of the quantum bit.

SourceUniversity of Michigan·JournalNature·DateJun 24, 2009

How mitochondria get their membranes bent

A research team at Goethe University Frankfurt has identified two proteins, Fcj1 and Su e/g, that regulate the shape of mitochondria's inner membrane. The protein Fcj1 promotes negative curvature, while the Su e/g protein induces positive bending, leading to the formation of cristae junctions.

SourceGoethe University Frankfurt·JournalJournal of Cell Biology·DateJun 24, 2009

Wildlife faces cancer threat

A recent study by the Wildlife Conservation Society finds that cancer is a major threat to wild animal populations, with certain species at risk of extinction due to contagious cancers and pollution. The study highlights the need for increased health monitoring and resource allocation to safeguard animals and humans.

SourceWildlife Conservation Society·JournalNature Reviews Cancer·DateJun 24, 2009

Study finds people residing in poor communities not benefiting from recent drop in colorectal cancer

A recent study found that colorectal cancer incidence rates decreased significantly among whites aged 65 and over, but not among those in poorer communities. The researchers suggest that lack of access to healthcare may be the reason for this disparity. Colorectal endoscopic screening rates also increased among whites, but were lower a...

SourceAmerican Cancer Society·JournalCancer Causes & Control·DateJun 24, 2009

Tips from the American Journal of Pathology

Scientists have made significant discoveries in the fight against muscular dystrophy, identifying a potential gene therapy approach to overexpress Galgt2 protein. In another breakthrough, researchers have identified a stromal marker for breast cancer progression, highlighting the importance of examining stroma PDGF receptor expression ...

SourceAmerican Journal of Pathology·JournalAmerican Journal Of Pathology·DateJun 24, 2009

New piece found in colorectal cancer puzzle

Researchers found increased mRNA levels of PN-1, a prostasin inhibitor, in colorectal tissue samples from patients with mild/moderate dysplasia and severe dysplasia before colorectal cancer. Elevated PN-1 levels coincide with the acquisition of malignant properties in colorectal tissue.

SourceBMC (BioMed Central)·JournalBMC Cancer·DateJun 24, 2009