Science News SciGuru.com |  |
- Self-sculpting sand: New algorithms could enable heaps of ‘smart sand’ that can assume any shape, allowing spontaneous formation of new tools or duplication of broken mechanical parts
- PTSD genes identified by UCLA study
- Exploring the Antidepressant Effects of Testosterone
- How Black Holes Grow: Evidence Indicates They Eat Binary Star Partners
- Two Targeted Therapies Act Against Ewing's Sarcoma Tumors
- PI3K/mTOR Pathway Proteins Tied to Poor Prognosis in Breast Cancer
- Mechanism found connecting metastatic breast cancer and arthritis
| Posted: 02 Apr 2012 06:47 AM PDT Imagine that you have a big box of sand in which you bury a tiny model of a footstool. A few seconds later, you reach into the box and pull out a full-size footstool: The sand has assembled itself into a large-scale replica of the model.       |
| PTSD genes identified by UCLA study Posted: 02 Apr 2012 05:25 AM PDT Why do some persons succumb to post-traumatic stress disorder (PTSD) while others who suffered the same ordeal do not? A new UCLA study may shed light on the answer. UCLA scientists have linked two genes involved in serotonin production to a higher risk of developing PTSD. Published in the April 3 online edition of the Journal of Affective Disorders, the findings suggest that susceptibility to PTSD is inherited, pointing to new ways of screening for and treating the disorder.    |
| Exploring the Antidepressant Effects of Testosterone Posted: 02 Apr 2012 05:01 AM PDT Testosterone, the primary male sex hormone, appears to have antidepressant properties, but the exact mechanisms underlying its effects have remained unclear. Nicole Carrier and Mohamed Kabbaj, scientists at Florida State University, are actively working to elucidate these mechanisms. They’ve discovered that a specific pathway in the hippocampus, a brain region involved in memory formation and regulation of stress responses, plays a major role in mediating testosterone’s effects, according to their new report in Biological Psychiatry.    |
| How Black Holes Grow: Evidence Indicates They Eat Binary Star Partners Posted: 01 Apr 2012 08:40 PM PDT A study led by a University of Utah astrophysicist found a new explanation for the growth of supermassive black holes in the center of most galaxies: they repeatedly capture and swallow single stars from pairs of stars that wander too close.    |
| Two Targeted Therapies Act Against Ewing's Sarcoma Tumors Posted: 01 Apr 2012 08:48 AM PDT A pair of targeted therapies shrank tumors in some patients with treatment-resistant Ewing's sarcoma or desmoplastic small-round-cell tumors, according to research led by investigators from The University of Texas MD Anderson Cancer Center reported at the AACR Annual Meeting 2012.    |
| PI3K/mTOR Pathway Proteins Tied to Poor Prognosis in Breast Cancer Posted: 01 Apr 2012 08:45 AM PDT Four proteins involved in translation, the final step of general protein production, are associated with poor prognosis in hormone-receptor-positive breast cancer when they are dysregulated, researchers reported at the AACR Annual Meeting 2012.    |
| Mechanism found connecting metastatic breast cancer and arthritis Posted: 01 Apr 2012 08:40 AM PDT New research shows it may be no accident when doctors observe how patients suffering from both breast cancer and arthritis seem to have more aggressive cancer. However, the new-found interaction between the two diseases may also suggest a possible treatment. A potential relationship between metastatic breast cancer and autoimmune arthritis, as suggested by past epidemiological studies, has led researchers from the University of North Carolina at Charlotte to perform a series of mouse model experiments that appear to confirm the connection.    |
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