ScienceDaily: Top News

---

• Certain bacteria suppress production of toxic shock toxin: Probiotic potential looms
• First migration from Africa less than 95,000 years ago: Ancient hunter-gatherer DNA challenges theory of early out-of-Africa migrations
• Immune-cell therapy could strengthen promising melanoma treatment
• Blocking an inflammation pathway prevents cardiac fibrosis, study suggests
• Spatial memory: Mapping blank spots in the cheeseboard maze
• Men and women get sick in different ways: Developing gender-specific medicine is a major challenge of the future
• How organic magnets grow in a thin film
• For the first time Iberian lynx embryos are collected and preserved
• Cooled integrated circuit amplifies with lowest noise so far
• Long nerve grafts restore function in patients with brachial plexus injury

Certain bacteria suppress production of toxic shock toxin: Probiotic potential looms Posted: 22 Mar 2013 09:54 AM PDT Certain Streptococci increase their production of toxic shock syndrome toxin 1, sometimes to potentially dangerous levels, when aerobic bacteria are present in the vagina. But scientists have discovered certain strains of lactobacillus bacteria are capable of dampening production of that toxin.

First migration from Africa less than 95,000 years ago: Ancient hunter-gatherer DNA challenges theory of early out-of-Africa migrations Posted: 22 Mar 2013 08:48 AM PDT Recent measurements of the rate at which children show DNA changes not seen in their parents -- the "mutation rate" -- have challenged views about major dates in human evolution. In particular these measurements have made geneticists think again about key dates in human evolution, like when modern non-Africans split from modern Africans. The recent measurements push back the best estimates of these dates by up to a factor of two. Now, however scientists present results that point again to the more recent dates.

Immune-cell therapy could strengthen promising melanoma treatment Posted: 22 Mar 2013 07:43 AM PDT Scientists have used newly developed nanotechnology chips (multidimensional and multiplexed immune monitoring assays) to successfully monitor T cells genetically engineered to attack melanoma. They have discovered that the T cells change over time when returned to patients. These results will help improve engineered immunotherapy for melanoma and the assays will help understand a spectrum of other cellular immunotherapies in the future.

Blocking an inflammation pathway prevents cardiac fibrosis, study suggests Posted: 22 Mar 2013 07:43 AM PDT New research shows that blocking an enzyme that promotes inflammation can prevent the tissue damage following a heart attack that often leads to heart failure.

Spatial memory: Mapping blank spots in the cheeseboard maze Posted: 22 Mar 2013 07:42 AM PDT During learning, novel information is transformed into memory through the processing and encoding of information in neural circuits. Scientists have now uncovered a novel role for inhibitory interneurons in the rat hippocampus during the formation of spatial memory.

Men and women get sick in different ways: Developing gender-specific medicine is a major challenge of the future Posted: 22 Mar 2013 06:08 AM PDT Recent research in laboratory medicine has revealed crucial differences between men and women with regard to cardiovascular illness, cancer, liver disease, osteoporosis, and in the area of pharmacology.

How organic magnets grow in a thin film Posted: 22 Mar 2013 06:07 AM PDT Development of organic single molecule magnets opens a great many of applications for magnetic materials and new memory technologies. Organic magnets are lighter, more flexible and less energy intensive in production than conventional magnets. Scientists have now established a first step on the road to new applications for organic magnets: Their controlled deposition in a thin film.

For the first time Iberian lynx embryos are collected and preserved Posted: 22 Mar 2013 06:07 AM PDT A pioneering procedure in felines allows the collection of biological material from Iberian lynx females before castration. The preserved biological material of the lynxes will be used in future conservation breeding programs.

Cooled integrated circuit amplifies with lowest noise so far Posted: 22 Mar 2013 06:07 AM PDT Researchers have demonstrated an integrated amplifier with the lowest noise performance so far. The amplifier offers new possibilities for detecting the faintest electromagnetic radiation, for example from distant galaxies.

Long nerve grafts restore function in patients with brachial plexus injury Posted: 22 Mar 2013 06:03 AM PDT A new study challenges a widely held belief that long nerve grafts do poorly in adults with an axillary nerve injury. Investigators found that the outcomes of long nerve grafts were comparable to those of modern nerve transfers.

You are subscribed to email updates from ScienceDaily: Top News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610