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Mundo de los Microbios - Episodio 107 - Delfina Urbina

Uno de los patógenos más importantes en América Latina y seguramente el mundo entero, el rotavirus, es discutido en este episodio de La Radio El Mundo de los Microbios. La Prof. Delfina Urbina, con una larga trayectoria en diferentes áreas de la Microbiología nos visita hoy. Fué Profesora Tit... Read More

TWiV 251: Don't kiss the camel



Hosts: Vincent Racaniello, Dickson Despommier, Read More

BacterioFiles Micro Edition 149 - Psychrobacter Survives Siberian Schisms

This episode: Cold-loving bacteria can repair surprising amounts of DNA damage even sub-zero temperatures!


(9.1 MB, 9.9 minutes)


Bacteria isolated from the Siberian arctic permafrost are exposed to a lot of radiation over thousands of years, but somehow they are able to repair... Read More

Oral bacteria resulting from poor dental hygiene shows a potential association with Alzheimer’s disease

Researchers examined samples from the brains of patients with and without dementia and found lipopolysaccharide, a component of Porphyromonas gingivalis, an oral bacterium, in four out of 10 Alzheimer’s disease brain samples.

“This clearly shows that there is an association between oral bacte... Read More

TWiV 235: Live in Edmonton, eh?



Hosts: Vincent Racaniello and Rich Condit Read More

BacterioFiles Micro Edition 145 - Clostridium Converts Cortisol

This episode: Gut bacteria may convert cortisol into important human hormones!


(6 MB, 6.5 minutes)


Note: Episode 144 is now available too. Sorry about that. Not sure what went wrong there, but it is regrettable.


A minor player in the gut, Clostridium scindens,... Read More

TWiM 64 Letters

Tim writes:


Vincent and friends,


While driving around a field cutting hay lost in my science podcast playlist the episode of TWIM #61 came up and I had to listen intently as salmonella typhimurium came up as this is a common enteric issue in agriculture. When ... Read More

BacterioFiles Micro Edition 150 - Morels Make Mycelial Motorways

This episode: Bacteria use fungal filaments like highways to swim through soil!


(7.7 MB, 8.3 minutes)


Show notes: 
Journal Paper


Read More

TWiM 76 Letters

Geoffrey writes:


Doctors:

I just got around to listening to episode 12 “Photothermal Nanoblades and Genome Engineering”. Your comment that it would need to be scaled up before it was practical for some of you to use intrigued me. I did a quick Google sear... Read More

TWiV 243: Live from ASV at Penn State



Hosts: Vincent Racaniello, Rich Condit, and Read More

Ice Nucleation Bacteria, Twitter, and Me!

In this post from my microbiology/education blog, I discuss a post on Boing Boing recently that used a video I had made of ice nucleation bacteria. Ice nucleation bacteria are very interesting of course, and I link to the Boing Boing post. In addition, I provide an additional video of students... Read More

A retrovirus makes chicken eggshells blue

When you purchase chicken eggs at the market, they usually have white or brown shells. But some breeds of chicken produce blue or green eggs. The blue color is caused by insertion of a retrovirus into the chicken genome, which activates a gene involved in the production of blue eggs. Read More

TWiP 68 letters


Tim writes:


I listened to the latest TWIP this morning. Dickson mentioned the herbicide atrazine but thought it was a fungicide. It is actually a herbicide in the photosynthesis inhibitor class. Another bit of trivia about ag chemicals is that old chemicals like ... Read More

TWiP 70 letters


Robin writes:


Cysticercosis.


While it is true that Taenia saginata tends to be benign as helminthic infestations go in humans, the same cannot be said for Taenia solium.


In both cases, ingestion of (encysted) larvae leads to enteric infestation wi... Read More

Curious about the Human Microbiome?

The American Academy of Microbiology has released its newest report on the human microbiome. Based on the deliberations of some of the leading experts, the report answers common questions people have about this new field of science. While there is still much to be learned, this report presents t... Read More

BacterioFiles Micro Edition 146 - Engineered Escherichia Eliminates Enemies

This episode: Scientists engineered E. coli to seek and destroy pathogens!


(10 MB, 11 minutes)


A bacterium can sense pathogens in the body, swim toward them, and release a deadly biofilm-busting payload. This process is called pseudotaxis, and could be modified for many... Read More

TWiV 267: Snow in the headlights



Hosts: Vincent Racaniello, Alan Dove, Read More

TWiP 69 letters


Richard writes:


Hi Vincent and Dickson,


I enjoy TWIP, and often recommend it to my students. I'm a parasitologist, primarily a Leishmaniac, but I have learnt a lot from TWIP. I find it both more educational and entertaining than Car Talk.


The disc... Read More

India has been free of polio for three years

Three years ago today, on 13 January 2011, the last case of poliomyelitis was reported in India. This achievement represents a remarkable turnaround for a country where control of the disease had for years been extremely difficult. As recently as 2009 there were 741 confirmed cases of polio caus... Read More

TWiP 60 letters

Maureen writes:


Our vaccine unit here at NIH did a study of malaria vaccine with some promising results. I know Dickson has been a champion of conquering malaria.


http://www.scie... Read More

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