Add BrightSurf on Google Email

Science News Archive May 2012 - Page 11


Page 11 of 31

Late-breaking clinical trials

Seven late-breaking clinical trials presented at ATS 2012 examined treatments for ventilator-associated pneumonia, cardiac surgery associated kidney injury, septic shock, idiopathic pulmonary fibrosis, smoking cessation, malignant pleural effusion, and non-cystic fibrosis bronchiectasis. Results showed that shorter courses of doripenem...

Modifying scar tissue can potentially improve outcome in chronic stroke

Researchers at the Buck Institute have found that modifying scar tissue can potentially improve outcomes in chronic stroke. The study builds on spinal cord injury research and shows that treatments like chondroitinase ABC and glypican can reduce scar tissue size, stimulate neuron growth, and increase survival.

SourceBuck Institute for Research on Aging·JournalProceedings of the National Academy of Sciences·DateMay 21, 2012

Financial tool considered climate change uncertainty to select land for conservation

Researchers used the Modern Portfolio Theory to develop a diversified land portfolio for conservation in the Prairie Pothole Region. The study found that considering both benefits and costs resulted in the most efficient land acquisition, with the central area proving more cost-effective than the eastern region.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalProceedings of the National Academy of Sciences·DateMay 21, 2012

Physical properties predict stem cell outcome

Researchers at Brown University have discovered that the stiffness, viscosity, and other mechanical properties of adult stem cells can foretell what they will become, enabling a filter to extract needed cells from larger tissue samples. This breakthrough could lead to better healing outcomes in tissue engineering.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateMay 21, 2012

Diabetes drug target identified

Researchers at the University of Cincinnati have identified apolipoprotein A-IV (apoA-IV) as a promising target for a new diabetes treatment. The study found that apoA-IV improves insulin secretion and reduces blood sugar levels in mice with impaired glucose tolerance.

SourceUniversity of Cincinnati·JournalProceedings of the National Academy of Sciences·DateMay 21, 2012

Study finds moderate weight loss reduces levels of sex hormones linked to breast cancer risk

A randomized clinical trial found that moderate weight loss can significantly reduce levels of circulating estrogens associated with an increased risk of breast cancer. The study, published by Fred Hutchinson Cancer Research Center, showed that losing just 5% of one's total body weight had a beneficial impact on hormone levels.

SourceFred Hutchinson Cancer Center·JournalJournal of Clinical Oncology·DateMay 21, 2012

Behavioral support from peers, staff lowers patients' blood pressure

A study found that behavioral support from peers and primary care office staff can help patients with poor blood pressure control improve their blood pressure levels by as much as starting a new drug. The intervention reduced systolic pressure by 7.2mmHg in the treatment group compared to 0.8mmHg in the control group.

SourceUniversity of Texas Health Science Center at San Antonio·JournalJournal of General Internal Medicine·DateMay 21, 2012

Mercury in dolphins: Study compares toxin levels in captive and wild sea mammals

A study by Johns Hopkins University and The National Aquarium found that captive dolphins have lower levels of mercury in their systems compared to wild dolphins. This difference was attributed to the diet of the captive animals, which consisted mainly of small fish from North Atlantic waters with lower mercury pollution levels.

SourceJohns Hopkins University·JournalThe Science of The Total Environment·DateMay 21, 2012

Study examines effect of prednisolone in patients with Bell palsy

A randomized trial of 829 patients with Bell palsy found that prednisolone treatment significantly reduced mild and moderate sequelae at 12 months. The study also showed that valacyclovir alone did not affect the severity of sequelae, while the combination of prednisolone plus valacyclovir did not offer additional benefits.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateMay 21, 2012

To dictate or not to dictate?

A study by Brigham and Women's Hospital found that doctors who dictated their patient notes had significantly worse quality of care compared to those who used structured documentation. Doctors who used free-text notes had better quality of care in providing influenza vaccinations.

SourceBrigham and Women's Hospital·JournalJournal of the American Medical Informatics Association·DateMay 21, 2012

Folic acid food enrichment potentially protective against childhood cancers

Researchers from the University of Minnesota and Washington University found that folic acid fortification of grain products does not increase childhood cancer rates but may be protective against certain cancers. A notable decrease in Wilms tumor and primitive neuroectodermal tumor was observed following the start of fortification.

Zooming in on bacterial weapons in 3-D

Researchers have elucidated the structure of type III secretion system needles at atomic resolution, revealing similarities in their inner part while surface variability evades host recognition. This discovery enables new insights into pathogen immune evasion and prospects tailored antiinfectives to block needle assembly.

SourceMax-Planck-Gesellschaft·JournalNature·DateMay 21, 2012

How plants chill out

Researchers studied thale cress under high temperature conditions, finding that plants with reduced stomata exhibit greater water loss and leaf evaporative cooling. This adaptation may promote the diffusion of water vapor from stomata, cooling the plant.

SourceUniversity of Bristol·JournalCurrent Biology·DateMay 21, 2012