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168,132 articles from ScienceDaily

Novel biomarker in spit linked to stress, resilience

Spit conjures a variety of sayings and images for most people, but for some researchers, spit is also serious business. In a recent study, scientists tracked the release of nerve growth factor in saliva (sNGF), finding for the first time that this protein typically linked to the survival, development or function of neurons may be an important player in understanding the body’s response to...

Protecting the weedy and wild kin of globally important crops

As more and more people recognize the importance of the wild relatives of crop plants to agriculture and food security, interest in cataloging and conserving these plants is building around the world. Agricultural researchers are working to identify and protect the wild relatives of domesticated crop plants both in the United States and...

Smoking during pregnancy may increase risk of bipolar disorder in offspring

A study published suggests an association between smoking during pregnancy and increased risk for developing bipolar disorder in adult children. Researchers evaluated offspring from a large cohort of pregnant women and found that maternal smoking during pregnancy was associated with a twofold increased risk of bipolar disorder in their...

New bio bank to resolve legal, ethical issues

When researchers collect human tissue in a so-called bio bank, the purpose is usually to learn about various diseases and improve curing of them. But a group of researchers are in the process of creating a bio bank, which will generate knowledge about the legal and ethical aspects of bio banking as well as contributing to medical...

New fossils push the origin of flowering plants back by 100 million years to the early Triassic

Drilling cores from Switzerland have revealed the oldest known fossils of the direct ancestors of flowering plants. These beautifully preserved 240-million-year-old pollen grains are evidence that flowering plants evolved 100 million years earlier than previously thought, according to a new study. Flowering plants evolved from extinct plants related to conifers, ginkgos, cycads, and seed ferns....

Scientist sniffs out possible new tick species

Kibale National Park is an almost 500-square-mile forest in western Uganda. Here scientists frequently study how infectious diseases spread and evolve in the wild. One scientist returned with a "stow-away" -- a new species of tick.


TUESDAY 1. OCTOBER 2013


Lactation may be linked to aggressive cancer in Mexican women

Scientific data suggest that a woman reduces her risk of breast cancer by breastfeeding, having multiple children and giving birth at a younger age. A study recently published indicates that women of Mexican descent may not fit that profile. In fact, results suggest that women of Mexican descent with more children and those who breastfeed are more likely to be diagnosed with an aggressive form of...

New tuberculosis vaccine developed

A new vaccine has been developed to act as a booster to Bacille Calmette Guerin (BCG), currently the only TB vaccine available. BCG was developed in the 1920s and has been used worldwide. The new “booster” would reactivate immune elements that over time diminish following BCG...