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Latest National Academy of Sciences USA Stories

2011-06-30 18:23:17

Researchers at the Sahlgrenska Academy, University of Gothenburg, have identified a series of novel proteins in human cerebrospinal fluid. The proteins, which carry specific sugar molecules, are found in greater concentrations in patients with dementia caused by Alzheimer's disease than in patients with dementia caused by other diseases. This gives hope for new forms of treatment in the future. Göran Larson is a professor at the Sahlgrenska Academy and one of the authors of the article...

2011-05-31 15:34:58

Researchers from the Walter and Eliza Hall Institute have overturned conventional wisdom on how cell movement across all species is controlled, solving the structure of a protein that cuts power to the cell 'motor'. The protein could be a potential drug target for future malaria and anti-cancer treatments. By studying the structure of actin-depolymerising factor 1 (ADF1), a key protein involved in controlling the movement of malaria parasites, the researchers have demonstrated that...

2011-01-18 15:03:17

Antioxidants are sold over the counter everywhere. They're added to food, drink and face cream. But according to Prof. Nava Dekel of the Biological Regulation Department, we still don't have a complete understanding of how they act in our bodies. New research by Dekel and her team, recently published in the Proceedings of the National Academy of Sciences USA (PNAS), has revealed a possible unexpected side effect of antioxidants: They might cause fertility problems in females. Common...

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2010-11-16 08:45:22

Findings could one day lead to improved treatment of spinal cord injuries Scientists have discovered the origin of a unique type of cell known for its ability to support regeneration in the central nervous system. Their findings, published this week in the journal Proceedings of the National Academy of Sciences USA (PNAS), raise the possibility of obtaining a more reliable source of these cells for use in cell transplantation therapy for spinal cord injuries. Olfactory ensheathing cells...

2010-06-01 10:20:00

New model reveals the molecular basis of multiple hereditary exostoses and provides a tool to screen new treatments Children born with multiple hereditary exostoses (MHE) suffer from abnormal growths on their bones. These bony protrusions stunt their growth and can cause pain and disfigurement. Scientists have long known which genes are mutated in this rare disease, but not how the mutations lead to abnormal bone growth. Even attempts at replicating the symptoms in mice have been...

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2010-05-04 08:23:07

An unprecedented study of bald eagle diet, from about 20,000 to 30,000 years ago to the present, will provide wildlife managers with unique information for reintroducing Bald Eagles to the Channel Islands off California. The scientists, including researchers from the Carnegie Institution's Geophysical Laboratory, found that eagles fed mainly on seabirds from about 20,000 to 30,000 years ago to the 1840s and 50s, when humans introduced sheep. The seabirds provided an abundant source of carrion...

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2010-04-19 14:26:07

Modern-day Chinese pigs are directly descended from ancient pigs which were the first to be domesticated in the region 10,000 years ago, a new archaeological and genetic study has revealed. An international team of researchers, led by Durham University (UK) and the China Agricultural University, in Beijing, say their findings suggest a difference between patterns of early domestication and movement of pigs in Europe and parts of East Asia. The research, published today (Monday, April 19) in...


Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.