ScienceDaily: Top News |
| 'Phenotype switching' can make melanoma become metastatic, resistant to drugs Posted: 18 Oct 2013 05:36 PM PDT One of the challenges of understanding cancer is trying to determine the mechanisms that drive metastasis, or the process by which tumor cells are able to spread throughout the body. Researchers describe how melanoma tumors use "phenotype switching" -- changing their outward appearance -- can result in melanoma cells that are highly invasive and more resistant to therapy.  |
| Challenges, opportunities for reducing antibiotic resistance in agricultural settings Posted: 18 Oct 2013 10:23 AM PDT Antibiotic resistant pathogens are an emerging, critical human health issue. The World Health Organization (WHO) has declared antibiotic resistance as a top health issue worldwide. Two million Americans are infected each year with diseases resistant to known antibiotics; between ten and fifteen thousand die. Interdisciplinary standards are needed for studying antibiotic resistance in agriculture to help rectify its wide-reaching problems.  |
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