virus

Tag archives for virus

Through the course of evolution vertebrates have apparently lost their gene-encoded viral defense mechanisms. These ancient defenses allow plants and insects to silence the expression of certain genes by using what is known as RNA interference. This natural defense system can be manipulated to create genetically modified crops that resist certain infections. However, a new…

Check out this video from Reuters (via YouTube). It summarizes an exciting study from researchers at Imperial College London who were able to stop the progression of Alzheimer’s disease in mice by administering a modified virus to the animals. The virus worked by preventing the formation of the characteristic amyloid plaques that are responsible for…

Cleanliness saves hives

Varroa mites can be highly destructive to bee colonies and are a big concern for beekeepers. They get inside honeycombs where they lay eggs and feed on the bee pupae. When the adult bees are released from their cells, so are the mites, which then go on to lay more eggs. Bees that live with…

I read an interesting article in Scientific American that discussed the so-called Peto’s Paradox. Dr. Richard Peto (University of Oxford) came up with the idea that if every cell has an equal probability of becoming cancerous, then larger animals would be predicted to develop cancer at higher rates than smaller animals. As it turns out,…

Estimating unknown viruses in mammals

An ambititous project seeks to identify all unknown viruses in mammals to determine the relative risk of infection to humans and to develop strategies to prevent and treat infections before they become pandemics.┬áThe pioneering research team is led by Dr. Simon Anthony at Columbia University and Dr. Peter Daszak from EcoHealth Alliance. The team started…

A virus is to blame for the deaths of hundreds of bottlenose dolphins along the East Coast of the United States: