The first immortal human cell line ever produced, HeLa, originated from a cervical adenocarcinoma taken from Henrietta Lacks. The cell line grew so well that it was used in many laboratories and soon was found to contaminate other cell lines. Now HeLa RNA has made its way into human sequence dat... Read More
Immunology Explained Through Poetry - What happens when one touches a poison ivy?
Billy was at summer camp,
And wanted to feel like a champ,
So he searched for a flower,
That would stop Susie’s glower,
But found poison ivy instead.
While Billy was later playing,
He had no i... Read More
You've probably gone a few days without showering -- maybe a week. But let's say you don't bathe for days on end -- as in you use no soap, no water, no nothing.
What would happen?
Click "source" to find out. Read More
This episode: Dr. Angela Zivkovic discusses the microbes present in our food!
(21.6 MB, 23.6 minutes)
This one is a bit more tricky; both Giardia and Cryptosporidium are possible. The symptoms are more those of Cryptosporidium, so that would be my semi-educated guess. Most of that education comes through you, with some help of some CDC... Read More
The enzymes that make copies of the DNA or RNA genomes of viruses – nucleic acid polymerases – can be placed into two broad categories depending on whether or not they require a primer, a short piece of DNA or RNA, to get going. The structure of the primer-independent RNA polymerase of hepatitis... Read More
ASM's Cultures magazine traveled to Colombia to speak ... Read More
This episode: Gut microbes may induce an immune response that protects against malaria!
(10.2 MB, 11.2 minutes)
Viruses can be broadly classified according to whether or not the particle is enveloped – surrounded by a membrane taken from the host cell – or naked. Some naked viruses apparently are more modest than we believed. Read More
Matt Daugherty writes:
I just listened to the latest TWiM. Thanks for covering our horizontal gene transfer paper! It was great to hear you all talk about it and give your thoughts.
With regards to the selective pressure for retention of the Dae’s in genomes o... Read More
This episode: When digesting wood, shipworms outsource their microbial symbionts from gut to gills!
(9.7 MB, 10.6 minutes)
Vincent, Dickson, and Daniel explain how trypanolytic factor forms membrane channels to lyse trypanosomes, and present a new case study.
This is fun, and although I'm sure someone will gripe about Dicksons enthusiastic response to the crayfish, it made my life easier. I think it's Paragonimus kellicoti. As for eating raw crayfish; how drunk... Read More
This episode: Microbes in the human gut seem to prevent/inhibit cholera!
(10.5 MB, 11.5 minutes)
My experience with Foldscope, the paper microscope. See the images of insects, parasites, vegetal and animal tissues and cells, yeast, bacteria and (almost) virus (the cytopathic effect), with Foldscope, the paper microscope (text in Spanish). Read More