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Science News for June 8, 2006


Salk scientists get to the root of plant cell fate

Researchers at the Salk Institute identified a key role for the TOPLESS gene in plant development, enabling them to engineer plants to grow leaves or flowers instead of roots. This breakthrough allows for the manipulation of plant polarity later in embryogenesis, offering opportunities for agricultural improvements.

SourceSalk Institute·JournalScience·DateJun 8, 2006

Space is dusty, and now astronomers know why

Scientists have long suspected that massive star supernovae produce dust, but previous technology limitations hindered confirmation. A new study reveals that supernovae are indeed a major contributor to the early universe's dust, enabling rapid star formation and heavy element creation.

SourceMcMaster University·JournalScience·DateJun 8, 2006

Men infer sexual interest before women do

A recent study found that men tend to gauge their partner's sexual interest before women do, with men's ratings of women influenced by physical attractiveness but not agreeableness. Women, on the other hand, rated their male partners higher on both physical attractiveness and agreeableness.

SourceBlackwell Publishing Ltd.·JournalPsychology of Women Quarterly·DateJun 8, 2006

JCI table of contents, June 8, 2006

A study found that HtrA1 protein contributes to chemotherapy resistance in ovarian and gastric cancers by inducing cell death, while ghrelin hormone promotes the storage of energy as fat by altering gene expression in adipose cells. The findings suggest potential therapeutic targets for obesity treatment.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 8, 2006

Bone marrow may restore cells lost in vision diseases

Researchers at the University of Florida have found that bone marrow cells can regenerate damaged retinal pigment epithelium (RPE) cells, which play a crucial role in vision health. This breakthrough may lead to new treatments for diseases such as age-related macular degeneration and provide hope for patients with sight-robbing injuries.

SourceUniversity of Florida·JournalInvestigative Ophthalmology & Visual Science·DateJun 8, 2006

Avantogen and Innovate announce ASCO abstracts

Researchers report improved survival rates with RP101, a novel compound being investigated as a potential therapeutic for advanced pancreatic cancer. In two studies, patients showed significant improvements in median survival and time to progression, offering hope for patients affected by the disease.

New step toward treatment for Duchenne muscular dystrophy

A team of researchers has achieved a significant breakthrough in treating Duchenne muscular dystrophy by successfully transplanting healthy muscle cells into patients, showing promise for increasing the production of the missing protein dystrophin. The new clinical trials aim to further assess the treatment's effectiveness and measure ...

SourceUniversité Laval·JournalNeuropathology·DateJun 8, 2006

Gene discovery opens door to tackling disease

Researchers have discovered gene SLIRP with the potential to shut down oestrogen in breast cancer cells and testosterone in prostate cancer cells, depending on the cancers' survival. This breakthrough could lead to the development of 'smart' drugs that target specific genes, potentially reducing side effects and improving survival rates.

SourceResearch Australia·JournalMolecular Cell·DateJun 8, 2006

Seeing beyond the gray areas: New tool uncovers the importance of the brain's white matter

Researchers have discovered the importance of white matter in the human brain using a new tool called Diffusion Tensor Imaging (DTI). This breakthrough has the potential to reveal the role of white matter connections in various neurological conditions. The findings may also raise ethical concerns about how this information is used.

SourceBlackwell Publishing Ltd.·JournalAnnals of the New York Academy of Sciences·DateJun 8, 2006

The mystery behind love-hate relationships

Research by Yale University's Margaret Clark and Steven Graham found that individuals with low self-esteem are slower to respond when judgmenting partners due to their tendency to idealize or devalue them. The study also introduced the I-TAPS scale, a tool to measure the extent of segregated thoughts about partners.

SourceYale University·JournalJournal of Personality and Social Psychology·DateJun 8, 2006