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Science News for October 31, 2008


It's relative: Contrasting hurricane theories heat up

Scientists explore relationship between sea surface temperature and seasonal hurricane activity, finding differing interpretations of observational record can imply vastly different futures. The 'relative' SST hypothesis suggests a similar recent past trend with natural climate variability, while the local SST hypothesis predicts highe...

A useful imaging modality for monitoring treatment response to hepatocellular carcinoma

This study investigates the correlation between changes in CT perfusion parameters pre- and post-TACE treatment of HCC and various responses to TACE. The findings suggest that CT perfusion imaging is a feasible technique for monitoring response of HCC to TACE, indicating its potential as an adjunctive tool in clinical practice.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 31, 2008

Biosynthetics production with detours

Researchers at Helmholtz-Zentrum für Infektionsforschung used computer models to identify genetic changes that increase biosynthetics production in Pseudomonas putida bacteria. The study, published in PLOS Computational Biology, aims to develop targeted methods for producing natural materials efficiently.

SourceHelmholtz Association·JournalPLOS Computational Biology·DateOct 31, 2008

Corn researchers discover novel gene shut-off mechanisms

A team of scientists has discovered unusual differences in the natural mechanisms that turn off genes in corn, providing new insight into how the crop protects itself from damage. The research found an extra layer of protective small RNAs in corn, which play a key role in repressing repetitive sequences, including mobile DNA elements.

SourceUniversity of Delaware·JournalProceedings of the National Academy of Sciences·DateOct 31, 2008

International Osteoporosis Foundation supports UK charity call for NICE guidance changes

The International Osteoporosis Foundation backs the National Osteoporosis Society in criticizing NICE guidance on osteoporosis prevention and treatment. Key concerns include women's access to effective treatments, exclusion of high-risk men, and lack of incorporation of the WHO-supported Fracture Risk Assessment Tool.

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·DateOct 31, 2008

If metastasectomy should be performed before other treatments

The study found that liver transplantation can significantly improve survival for patients with lung metastasis from primary liver cancer. The researchers identified liver transplantation as a key factor in extending patient survival, and recommended it as a standard treatment option for these patients. Additionally, the study suggeste...

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 31, 2008

Bacteria manage perfume oil production from grass

Scientists discovered bacteria in Vetiver grass roots that enhance essential oil production while altering molecular structure. The bacteria change the oil's properties to include insecticidal, antimicrobial, and antioxidant characteristics.

SourceWiley·JournalEnvironmental Microbiology·DateOct 31, 2008

Is ineffective esophageal motility associated with gastropharyngeal reflux disease?

A study published in the World Journal of Gastroenterology found no association between ineffective esophageal motility and gastropharyngeal reflux disease. Patients with IEM had similar acid clearance times as those with normal esophageal motility, suggesting that conventional manometry may not be able to evaluate true esophageal effe...

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 31, 2008

A rare case of collagenous colitis presenting as protein-losing enteropathy

Collagenous colitis is characterized by chronic watery diarrhea and abnormal collagen deposition. A rare case of collagenous colitis presenting as protein-losing enteropathy has been reported, with successful treatment with prednisolone. The condition should be included in the differential diagnosis for chronic diarrhea with hypoprotei...

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 31, 2008

Oral rinses used for tracking HPV-positive head and neck cancers holds promise for cancer screening

A non-invasive oral rinse screening method has shown promise in detecting high-risk human papillomavirus (HPV) infections in patients with head and neck cancers. The study found that oral HPV16 infections were significantly more common among patients with HPV-positive tumors, indicating a potential link between the two.

SourceAmerican Association for Cancer Research·JournalClinical Cancer Research·DateOct 31, 2008

Research shows aerobic exercise combined with resistance training improves glucose control in diabetics

Combining aerobic and high-force eccentric resistance exercise improved glucose control, physical performance, and body fat composition in people with type 2 diabetes. Patients who participated in a 16-week supervised exercise training program showed significant advantages over those in an aerobic-only exercise program.

SourceAmerican Physical Therapy Association·JournalPhysical Therapy·DateOct 31, 2008

Study reports Double Balloon Endoscopy useful for diagnosis and treatment of obscure GI bleeding

A study published by researchers in Japan found that Double Balloon Endoscopy (DBE) was effective in diagnosing small intestinal lesions in patients with obscure GI bleeding, with a sensitivity of 92.7%. DBE also showed therapeutic benefits for most patients, and the technique was more sensitive than capsule endoscopy in certain cases.

SourceAmerican Society for Gastrointestinal Endoscopy·JournalGastrointestinal Endoscopy·DateOct 31, 2008