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Science News Archive April 2010 - Page 6


Page 6 of 24

Human brain recognizes and reacts to race

Research at University of Toronto Scarborough found that the human brain is more reactive to people of one's own race, producing significantly more motor-cortex activity, whereas observing others from a different race results in reduced activity. The study suggests that this phenomenon may contribute to prejudice and limited empathy.

SourceUniversity of Toronto·JournalJournal of Experimental Social Psychology·DateApr 26, 2010

Study finds body's response to repetitive laughter is similar to the effect of repetitive exercise

A recent study reveals that laughter can optimize hormone levels, modulate immune activity, and lower blood pressure, similar to the effects of moderate physical exercise. Laughercise, a form of mirthful laughter, may provide an alternative treatment option for patients with wasting disease or depression-related appetite loss.

JCI table of contents: April 26, 2010

Researchers found that folic acid promotes nerve cell regeneration in injured rodents through a molecular pathway. Additionally, two separate studies identified distinct roles for proteins PLA2s in male fertility and sperm function, suggesting potential targets for new contraceptive agents and treatments for infertility.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 26, 2010

Song receives ACS's Henry H. Storch Award in Fuel Chemistry

Chunshan Song has been awarded the Henry H. Storch Award in Fuel Chemistry by the American Chemical Society for his outstanding contributions to clean fuels and catalysis research. His work focuses on developing innovative methods for producing advanced thermally stable jet fuels and removing sulfur from liquid hydrocarbon fuels.

New requirements for male fertility

Researchers have identified two proteins, sPLA2-III and group X secreted PLA2 (mGX), as crucial for sperm function and fertility in mice. Mice lacking these proteins had decreased fertility due to impaired sperm maturation and fertilization efficiency.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 26, 2010

Scientists favor needles over tablets for global vaccinations

Researchers at the Trudeau Institute discovered that cytokines can influence immune responses to subsequent infections and vaccination procedures. This knowledge provides a potential explanation for why chronic infections can alter immune responses to vaccines. Needle vaccinations may be more effective in regions where people are alrea...

SourceTrudeau Institute·JournalNature Immunology·DateApr 26, 2010

Tackling blood stem cell heterogeneity

A study published in Journal of Experimental Medicine identifies distinct HSC populations with varying propensities to generate specific blood cell types. The research reveals that high CD150 expression is associated with a 'latent' or 'delayed' ability to generate new blood cells.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateApr 26, 2010

Patients, clinicians favor disclosure of financial ties to industry

A review of studies suggests patients and research participants believe financial relationships between medicine and industry should be disclosed due to potential bias in research and clinical care. Disclosure has been recommended or required by medical associations and policymakers, but its impact on decision-making remains unknown.

SourceJAMA Network·JournalArchives of Internal Medicine·DateApr 26, 2010

New study: The kitchen-counter diet

A new study found that keeping serving dishes off the table can lead to a reduction in food consumption, with participants eating 20% fewer calories. The strategy can also be used to encourage healthier food choices, such as choosing fruits and vegetables over processed snacks.

Is it safe to breathe yet?

A team of researchers, led by Dr. Peter Sunderland, has created a double-flame burner to improve our understanding of soot formation and oxidation. This innovation aims to design cleaner and more efficient engines that reduce pollution and harm lung diseases.

Worm genes KO'd

Researchers at the University of Utah have developed a procedure to delete specific genes from nematode worms, allowing them to infer the function of each gene and thereby understand human gene regulation. The technique, called MosDel, uses a transposon to cut out genes and exploit cell DNA repair mechanisms.

SourceUniversity of Utah·JournalNature Methods·DateApr 25, 2010

Cedars-Sinai heart transplantation tip sheet

Researchers at Cedars-Sinai Heart Institute found that pre-transplant smoking increases the risk of non-fatal cardiac events, while homeless donors are associated with higher complications and poor outcomes. Donor demographics also play a role in transplant survival rates, with males receiving opposite-gender hearts having worse outcomes.

$1.7 million keeps McGill on edge

The McGill University researchers will be working on various projects, including cancer research and bone degeneration, using the new funding. The Canada Foundation for Innovation's investment will help develop Canada's global reputation as a place where outstanding research and training is being conducted.