The Hidden Life Of the Cell (57:24)
There is a battle playing out inside your body right now. It started billions of years ago and it is still being fought in every one of us every minute of every day. It is the story of a viral infection - the battle for the cell. This film reveals the exquisite machinery of the human cell system from within the inner world of the cell itself - from the frenetic membrane surface that acts as a security system for everything passing in and out of the cell, the dynamic highways that transport cargo across the cell and the remarkable turbines that power the whole cellular world to the amazing nucleus housing DNA and the construction of thousands of different proteins all with unique tasks. The virus intends to commandeer this system to one selfish end: to make more viruses. And they will stop at nothing to achieve their goal. Exploring the very latest ideas about the evolution of life on earth and the bio-chemical processes at the heart of every one of us, and revealing a world smaller than it is possible to comprehend, in a story large enough to fill the biggest imaginations.
You may be familiar with molecular movies from my two previous megaposts collecting them, but this extended documentary uses original animation that is collected into a coherent educational narrative and is just so fucking gorgeous. Enjoy. [more inside]
posted by Blasdelb
on Mar 24, 2013 -
"Why do parasites harm their hosts? Conventional wisdom holds that because parasites depend on their hosts for survival and transmission, they should evolve to become benign, yet many parasites cause harm. Theory predicts that parasites could evolve virulence (i.e., parasite-induced reductions in host fitness) by balancing the transmission benefits of parasite replication with the costs of host death. This idea has led researchers to predict how human interventions—such as vaccines—may alter virulence evolution, yet empirical support is critically lacking." Two papers
demonstrate empirical evidence for related models predicting the origin of virulence: [more inside]
posted by Blasdelb
on Oct 21, 2012 -
Since mid-2011, a substantial rise in pertussis [Whooping Cough] cases has been reported in the state of Washington. In response to this increase, the Washington State Secretary of Health declared a pertussis epidemic on April 3, 2012. By June 16, the reported number of cases in Washington in 2012 had reached 2,520 (37.5 cases per 100,000 residents), a 1,300% increase compared with the same period in 2011 and the highest number of cases reported in any year since 1942 [Make sure you don't miss Figure 1]. Commentators are already drawing corellations
with the fact that Washington State leads the nation in vaccine non-compliance
, Washington State's recent cutbacks in public health funding
, and increases in the number of uninsured (PDF)
. [more inside]
posted by Blasdelb
on Sep 27, 2012 -
A German researcher accidentally jabbed her finger with a hypodermic loaded with the deadly Ebola virus
. 48 hours later, she was injected with an untested, experimental vaccine
, developed by an international team of virologists and biologists. Though she may never have been infected, she was certainly in danger; in 2004, a similar incident caused the death of a Russian scientist
at a former Soviet biological weapons lab.
posted by permafrost
on Mar 29, 2009 -
Strike at Government Lab Enters Third Month.
This is happening at the Plum Island Animal Disease Center, which studies highly contagious viruses. Maintenance workers are on strike and the replacement workers have been involved with missing equipment and an accident. The official site
boldly declares that "Not once in our more than 40 years of operation has an animal pathogen escaped from Plum Island." Somehow I am not filled with confidence. And, while they say they only deal with animal pathogens, there is a lot of crossover with Foot and Mouth and West Nile. Should we be worried about this?
posted by sciatica
on Oct 14, 2002 -