ScienceDaily Top Science Headlines
for Sunday, April 24, 2011
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Brown recluse spider: Range could expand in N. America with changing climate (April 23, 2011) -- One of the most feared spiders in North America -- the brown recluse -- is the subject a new study that aims to predict its distribution and how that distribution may be affected by climate changes. Researchers believe that the range may expand northward, potentially invading previously unaffected regions. Newly influenced areas may include parts of Nebraska, Minnesota, Wisconsin, Michigan, South Dakota, Ohio, and Pennsylvania. ... > full story
Liver-cell transplants show promise in reversing genetic disease affecting liver and lungs (April 23, 2011) -- Transplanting cells from healthy adult livers may work in treating a genetic liver-lung disorder that affects millions of people worldwide, according to a new animal study. ... > full story
Starting a new metabolic path: New technique will help metabolic engineering (April 23, 2011) -- Researchers have demonstrated a new technique that speeds up and improves the identification and quantification of proteins within a cell or micoorganism. Called "targeted proteomics," the new technique is expected to be an important new tool for the fields of metabolic engineering and synthetic biology. ... > full story
Study adds weight to link between calcium supplements and heart problems (April 23, 2011) -- New research adds to mounting evidence that calcium supplements increase the risk of cardiovascular events, particularly heart attacks, in older women. ... > full story
How molecules get to the right place at the right time (April 23, 2011) -- Active transport processes in cells ensure that proteins with specialized local functions reach their intracellular destinations. Impaired transport causes cellular dysfunction or even cell death. Scientists have now revealed how such a transport complex recognizes its cargo and assembles. ... > full story
For family violence among adolescents, mattering matters (April 23, 2011) -- Teens and adolescents who believe that they matter to their family -- that is, they feel the make a difference in the family's daily doings -- are significantly less likely to threaten or engage in family violence, according to a new study. ... > full story
Scientists engineer nanoscale vaults to encapsulate 'nanodisks' for drug delivery (April 23, 2011) -- The first steps toward the development of the vault nanoparticle into a versatile and effective DDS are reported in this paper. The ability to encapsulate therapeutic compounds into the vault is a critical and fundamental obstacle in their development for small-molecule drug delivery. Recombinant vaults are engineered to encapsulate the highly insoluble and toxic hydrophobic compound all-trans retinoic acid (ATRA) using a vault-binding lipoprotein complex that forms a lipid bilayer nanodisk. ... > full story
New approach to defeating flu shows promise (April 23, 2011) -- New research on mice has shown that pulmonary administration of granulocyte macrophage-colony stimulating factor (GM-CSF) significantly reduces flu symptoms and prevents death after a lethal dose influenza virus. While GM-SCF therapy for humans as a flu prophylaxis or treatment may be years away, the study results were striking: All of the mice treated with GM-SCF survived after being infected with the influenza virus, whereas untreated mice all died from the same infection. ... > full story
Frog embryos lead to new understanding of cardiac development (April 23, 2011) -- During embryonic development, cells migrate to their eventual location in the adult body plan and begin to differentiate into specific cell types. There is now new insight into how these processes regulate tissues formation in the heart. ... > full story
C. difficile colonization accompanied by changes in gut microbiota: Study hints at probiotics as treatment (April 23, 2011) -- Asymptomatic colonization by Clostridium difficile, absent the use of antibiotics, is common in infants and when it happens changes occur in the composition of the gut microbiota, according to new research. ... > full story
Large Hadron Collider sets world record beam intensity (April 23, 2011) -- CERN's Large Hadron Collider (LHC) has set a new world record for beam intensity at a hadron collider, exceeding the previous world record set by the US Fermi National Accelerator Laboratory's Tevatron collider in 2010, and marks an important milestone in LHC commissioning. ... > full story
Democrats and Republicans increasingly divided over global warming, study finds (April 23, 2011) -- Despite the growing scientific consensus that global warming is real, Americans have become increasingly polarized on the environmental problem, according to a first-of-its-kind study. ... > full story
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