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Science News Archive 2004


Page 135 of 135

Effect of diabetes case management among low-income minority populations

A recent study has found that diabetes case management significantly improves glycemic control among low-income minority populations. The study, which was funded by the California Medi-Cal Managed Care Division and Center for Disease Control and Prevention, involved 362 Medicaid recipients with type 2 diabetes.

El Nino-related fires increase greenhouse gas emissions

Researchers from NASA and universities worldwide found that El Nino events led to significant increases in greenhouse gas emissions from fires globally. The majority of the increase occurred in Southeast Asia, with other regions like Central and South America also experiencing increased emissions.

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Old galaxies in a young universe: Finding stumps astronomers

The Gemini Deep Deep Survey has revealed a greater abundance of more massive and older galaxies than expected, dating back to the early universe. The discovery challenges current models of galaxy formation and suggests an accelerated growth phase for galaxies.

Faintest spectra ever raise glaring question

The Gemini Deep Deep Survey reveals that a large fraction of stars in the Universe are already in place when the Universe was young, contradicting existing models. The survey provides a comprehensive sample of galaxies in the Redshift Desert, revealing more metal-rich galaxies than expected.

Placebo-controlled clinical trials put children with asthma at risk

Children under 18 were more than twice as likely to be harmed in placebo-controlled trials due to asthma exacerbations compared to those receiving standard asthma therapy. Established guidelines recommend anti-inflammatory medications for all children and adults with mild-persistent, moderate or severe asthma.

Metastasis of colon cancer cells reversed in vitro

Researchers found that colon cancer cells can revert to non-metastatic behavior when surrounded by other cells, reversing the invasive process. By targeting a specific gene called Slug, scientists hope to develop a drug to block metastasis in patients.

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Outpatient medical settings differ in educational experiences

A study found distinct differences in symptoms, counseling skills, and procedures encountered by medical students in academic medical center clinics (AMCs), affiliated residency teaching sites (ARTs), and community-based practices (CBPs). Students reported varying levels of teaching and learning experiences across settings.

Study on toxic exposures in urban environments

Researchers at Columbia University discovered that steel dust from NYC subways contains elevated levels of iron, manganese, and chromium, exceeding 100 times those found in indoor or outdoor settings. The study suggests that subway platforms are a primary source of exposure to these metals.

Ozone standards pose health risk, scientists report

Scientists report that ozone standards set by EPA may be weaker than necessary due to overestimated background levels. Using a three-dimensional model of atmospheric chemistry, researchers found great variability in ozone depending on season, elevation, and geographic area.

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MTBE alternatives could pose similar environmental threat

A recent study by the American Chemical Society found that MTBE alternatives pose a similar environmental threat to their predecessor, with TBA contamination occurring at a scale similar to MTBE. The researchers suggest that better storage tank design and leak detection techniques can prevent such threats.

A new direction for psoriasis research?

Researchers found a correlation between genetic variations in the VEGF gene and psoriasis susceptibility. This discovery may lead to targeted therapies blocking the activity of VEGF, which could provide relief for patients.

East meets West with a traditional herbal cure for jaundice

A traditional herbal remedy has been found to improve bilirubin clearance in neonates, offering a potential complement to Western pharmaceutical treatments. The discovery involves the activation of the nuclear receptor CAR by an herbal tea, highlighting the intersection of Eastern and Western medical practices.

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Researchers find key gene in production of egg and sperm

A team of biologists at UC Berkeley has found a key gene involved in the first step of meiosis, allowing chromosomes to recognize and pair with their homologs. This discovery is crucial for understanding meiosis in humans and could lead to insights into infertility and genetic diseases.

JCI table of contents, January 2, 2004

A traditional herbal medicine enhances bilirubin clearance by activating the nuclear receptor CAR, potentially improving pharmaceutical treatments for neonatal jaundice. Additionally, a viral cure for type 1 diabetes has been discovered, where infection with lymphocytic choriomeningitis virus completely abolishes the diabetic process i...

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A viral cure for type 1 diabetes

Researchers discovered that a viral infection can redirect the immune response away from pancreatic beta cells, reducing autoaggressive CD8 T cells. This approach could lead to new treatments for type 1 diabetes by utilizing proinflammatory cytokines and chemokines produced during viral infections.

UI examines issues related to research involving prisoners

A study examined the ability of prisoners with mental illness to give informed consent and found that nearly all were competent but scored lower than healthy controls. The researchers suggest that extra time and effort should be spent during the consent process to ensure these individuals understand the risks and benefits.

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Combination drug therapy offers hope for malaria treatment

A meta-analysis of 16 randomised trials shows that artesunate is highly effective in treating malaria when added to other antimalarial drugs. The new combination dihydroartemisinin-piperaquine is also found to be highly efficacious in Vietnam, where multidrug-resistant parasites are common.

Economic impact of back pain substantial

A team of Duke University Medical Center researchers found that patients with back pain incur significantly higher health-care expenditures than those without back pain. The study's results highlight the substantial economic burden of back pain, which varies widely across patients and demographics.