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Wiley


Liver stiffness indicates portal hypertension

A study found that liver stiffness measurement by transient elastography can predict severe portal hypertension in patients with hepatitis C-related cirrhosis. The technique is less invasive than traditional methods like HVPG measurement and shows promise for non-invasive diagnosis.

SourceWiley·JournalHepatology·DateMay 1, 2007

The economic impact of arthritis on the United States

The study found a significant increase in arthritis prevalence from 36.8 million to 46.1 million adults between 1997 and 2003. Medical expenditures for prescription drugs almost doubled during this period, while inpatient expenditures declined, resulting in stable total medical care spending for individuals with arthritis.

SourceWiley·JournalArthritis & Rheumatism·DateApr 27, 2007

Stretching DNA to the limit

A Duke University team develops a method to measure DNA mechanical properties upon irradiation, revealing unraveling of the double helix and crosslinking of bases. This work establishes a relationship between DNA nanomechanics and damage, paving the way for DNA diagnostics.

SourceWiley·JournalSmall·DateApr 24, 2007

Scent prediction

An interdisciplinary team predicts the scent intensity of lily-of-the-valley fragrance components using a computer model of their olfactory receptors. The study confirms that electronic surface structures determine the interaction between scented molecules and human scent receptors.

SourceWiley·DateApr 18, 2007

The dGEMRIC index as a predictor of cartilage mechanical stiffness

Researchers used dGEMRIC MRI to measure GAG distribution and correlate it with indentation stiffness. The study found a significant relationship between the dGEMRIC index and mechanical stiffness, suggesting its potential as a predictive measure of cartilage stiffness in osteoarthritis patients.

SourceWiley·JournalJournal of Orthopaedic Research®·DateApr 10, 2007

Many women undertreated for ovarian cancer

A recent study found that one-third of ovarian cancer patients in the US fail to receive recommended comprehensive surgical treatment. Factors associated with undertreatment include age, race, and insurance status. The study highlights the need for increased access to specialized care from gynecologic oncologists.

SourceWiley·JournalCancer·DateApr 9, 2007

Drug used to prevent HIV transmission from mother to child damages DNA

Recent studies have found that the antiretroviral drug AZT causes genetic damage that may increase future cancer risk. Animal studies demonstrated increased rates of tumors and gene changes associated with human cancer, while human studies observed mutations and chromosomal damage in newborns exposed to NRTIs in utero.

SourceWiley·JournalEnvironmental and Molecular Mutagenesis·DateApr 6, 2007

Fascinating spider silk

Researchers at the Technical University of Munich have successfully produced genetically engineered spider silk protein using genetic engineering, revealing crucial insights into the spinning process. The study found that the interaction between hydrophilic and lipophilic properties of the proteins plays a key role in thread formation.

SourceWiley·DateApr 5, 2007

Working up potential living liver donors

A 4-step process can be completed quickly and efficiently to assess potential living liver donors. Despite challenges, the process results in a significant proportion of donors undergoing successful transplantation, emphasizing the importance of careful workup and informed consent.

SourceWiley·JournalLiver Transplantation·DateApr 3, 2007

1 out of every 3 arthritis sufferers is affected in ability to work

A new study estimates that 6.9 million US adults have arthritis-attributable work limitation (AAWL), with 1 in 20 working age adults reporting AAWL, and 1 in 3 among those with arthritis. Adults with AAWL have poor physical health and function, including high body mass index, joint pain, and frequent doctor's office visits.

SourceWiley·JournalArthritis Care & Research·DateMar 29, 2007

Arthritis pain, the brain and the role of emotions

A study published in Arthritis & Rheumatism found that arthritis pain is processed in brain areas associated with emotions and fear. The medial pain system, including the cingulate cortex and amygdala, was activated during arthritic pain, suggesting a stronger emotional impact than experimental pain.

SourceWiley·JournalArthritis & Rheumatism·DateMar 28, 2007

Physicians may be obstacles to breast reconstruction

A study found that only one quarter of general surgeons refer eligible patients for breast reconstruction consultations, resulting in low rates of the procedure in the US. Factors such as surgeon attitudes and patient knowledge play a significant role in referral practices.

SourceWiley·JournalCancer·DateMar 26, 2007

'Triple negative' breast cancers linked to the young, minority

A new study found that triple negative breast cancers are more common among young, poor minority women, particularly African American and Hispanic women. The tumors are also associated with later diagnosis and shorter survival rates, with African American women having the poorest five-year survival rate.

SourceWiley·JournalCancer·DateMar 26, 2007

Laying microscale tiles

A team of researchers led by Kyung Byung Yoon found that manually applying microcrystals to a substrate yields superior results compared to self-assembly methods. The manual process allows for denser packing and more regular orientation of microcrystals, making it preferable in the overlapping range of 0.5 to 3 µm.

SourceWiley·DateMar 23, 2007

Insomnia drug can improve brain function

A new study reports that zolpidem, an insomnia drug, temporarily improved brain function in a patient with akinetic mutism. The patient was able to communicate and perform basic functions after receiving the drug for insomnia. PET scans revealed increased brain activity in areas involved in motivation and cognitive processing.

SourceWiley·JournalAnnals of Neurology·DateMar 13, 2007

Expert centers prove cost-effective in managing ovarian cancer

A new study reveals that expert centers with extensive experience in managing cancer are more cost-effective over time, providing significantly longer quality-adjusted survival compared to less experienced medical centers. High-volume multidisciplinary centers also show better outcomes for ovarian cancer patients.

SourceWiley·JournalCancer·DateMar 12, 2007

Health-care inequities underscore racial disparities in prostate cancer

African-American men face significant barriers to timely diagnosis and screening due to constrained healthcare access, distrust of physicians, and socioeconomic disadvantages. The study reveals that knowledge about prostate cancer is comparable to that of white men, but lack of trust in medical care leads to irregular interactions and ...

SourceWiley·JournalCancer·DateMar 12, 2007

Rings made of little rods

Researchers at Rice University discovered that gold nanorods can spontaneously self-assemble into ring-shaped structures within seconds. The rings are made of tiny gold rods and form due to the condensation of water droplets onto a solution of the rods in a nonpolar solvent.

SourceWiley·DateMar 12, 2007

Outcomes for patients with hepatitis B who need liver transplants

The study found that survival rates for patients with hepatitis B who need liver transplants are similar between those with and without hepatocellular carcinoma (HCC). Despite the higher likelihood of transplantation, 5-year survival rates were comparable between the two groups. The findings suggest that antiviral therapy may have bene...

SourceWiley·JournalLiver Transplantation·DateMar 2, 2007

Food Quality Magazine presents 6th annual award

Hormel was recognized for its outstanding achievements in food safety investments, including the development of high pressure processing technology, and pioneering efforts to ensure humane animal treatment. The award honors food companies that protect consumer health and improve satisfaction.

SourceWiley·DateMar 1, 2007

Improving quality of life for patients with cirrhosis

A study found that lactulose improved cognitive function and health-related quality-of-life in patients with minimal hepatic encephalopathy, a condition associated with advanced liver disease. The treatment showed significant improvement in emotional behavior, movement, mobility, sleep/rest, and recreational activities.

SourceWiley·JournalHepatology·DateMar 1, 2007

New insights into autoimmunity and depression

A study found that anti-ribosomal P antibodies, associated with SLE, induce depressive behavior in mice by interacting with the limbic system. Fluoxetine treatment reversed this effect, but haloperidol had no significant impact.

SourceWiley·JournalArthritis & Rheumatism·DateFeb 27, 2007

The link between rheumatoid arthritis and cancer

Patients with RA have double the risk of death from cancer compared to the general population. However, RA patients do not have an increased risk of developing cancer. A long-term study found a 40% increase in mortality among those who suffered both RA and cancer.

SourceWiley·JournalArthritis & Rheumatism·DateFeb 27, 2007

Drug industry increasingly influences breast cancer research

A study found that pharmaceutical industry-sponsored breast cancer trials are more likely to report positive results than non-sponsored studies. These trials also tend to use single-arm designs, targeting patients with advanced disease, which may not answer questions about optimal treatment outcomes.

SourceWiley·JournalCancer·DateFeb 26, 2007

Peanut-shaped nanostructures

Japanese scientists produce peanut-shaped nanoparticles comprising two different sulfur-containing substances, palladium sulfide and cobalt sulfide. The unique structure gives rise to different physical and chemical properties.

SourceWiley·DateFeb 22, 2007

Honeydew honeys are better antioxidants than nectar honeys

Researchers found that honeydew honeys have greater antioxidant properties than nectar honeys due to their high polyphenol content and other chemical characteristics. The study suggests that honeydew honeys could be a valuable source of natural antioxidants for health benefits.

SourceWiley·JournalJournal of the Science of Food and Agriculture·DateFeb 21, 2007

Batten down the hatches against HIV

Carbon nanotubes successfully deliver RNA fragments that shut off genes for HIV-specific receptors on human T-cells. This approach significantly slows down HIV infection by blocking the virus's entry points.

SourceWiley·DateFeb 20, 2007

Daisies in bloom

A team of researchers has designed a biochip platform using a novel 'daisy' molecule that enables efficient gene expression and protein production without living cells. The system allows for the patterning of genes on silicon surfaces, enabling selective trapping of specific proteins with high spatial resolution.

SourceWiley·JournalSmall·DateFeb 15, 2007

Early switch to an aromatase inhibitor increases survival

A new study reveals that breast cancer patients taking tamoxifen who switch to an aromatase inhibitor within three years experience significant improvements in survival rates. The treatment demonstrates a clear survival benefit without an increased risk of death from other causes.

SourceWiley·JournalCancer·DateFeb 12, 2007