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Bacteria May Allow Animals to Send Quick Voluminous Messages

Twitter clips human thoughts to a mere 140 characters. Animals’ scent posts may be equally as short, relatively speaking, yet they convey an encyclopedia of information about the animals that left them.

In the current issue of the Proceedings of the National Academy of Sciences, a Michigan St... Read More

Paper device spots antibiotic-resistant bacteria

Scientists in Canada have developed a paper-based device that checks if bacteria are resistant to certain antibiotics. The simple system could help users in remote areas pick the most appropriate treatment for bacterial infections.

Click on 'source' to read more Read More

Small Molecule Acts As On-Off Switch for Nature's Antibiotic Factory

Scientists have identified the developmental on-off switch for Streptomyces, a group of soil microbes that produce more than two-thirds of the world's naturally derived antibiotic medicines.

Their hope now would be to see whether it is possible to manipulate this switch to make nature's anti... Read More

Bacterial Competition In Lab Shows Evolution Never Stops

Evolution is relentless process that seems to keep going and going, even when creatures live in a stable, unchanging world.

That's the latest surprise from a unique experiment that's been underway for more than a quarter-century.

Evolution is so important for biology, medicine and a genera... Read More

Epsilon toxin may trigger multiple sclerosis, research finds

Multiple sclerosis (MS), a central nervous system disease that often leads to paralysis and vision problems, affects approximately 2.3 million people worldwide and has no cure. Though no one knows what triggers MS, researchers have long suspected that a combination of genetic and environmental f... Read More

'Citrus greening' bacteria devastating world's orange crop

A glass of orange juice in the morning is something many of us take for granted. But that might soon change thanks to a citrus disease affecting every major orange-growing region in the world.

The world's orange crop is being threatened by "citrus greening," a bacterial infection carried by a... Read More

Compound stymies polyomaviruses in lab

There is no approved medicine to treat polyomaviruses, which afflict people with weakened immune systems, but scientists have found that a chemical compound called Retro-2 is able to reduce significantly the infectivity and spread of the viruses in lab cell cultures. Now they are working to impr... Read More

In sub-Sahara, foot and mouth disease moves over short distances

You probably remember foot and mouth disease (FMD) from the 2001 outbreak in the UK that prompted the culling of over 10 million sheep and cattle, but the disease affects livestock all over the world. It's a particular problem in Africa, where wildlife that harbor the picornavirus that causes FM... Read More

ICAAC 2013 - This Week in Microbiology with Vincent Racaniello


Hosts:  Read More

Harvard scientists control cells following transplantation, from the inside out

Harvard stem cells scientists at Brigham and Women’s Hospital and MIT can now engineer cells that are more easily controlled following transplantation, potentially making cell therapies, hundreds of which are currently in clinical trials across the United States, more functional and efficient.
... Read More

ICAAC 2013 - C. difficile Update


Patients getting medical care can catch serious infections called healthcare-associated infections (HAIs). While most types of HAIs... Read More

M. luteus/E.coli

Streak plate isolation of Micrococcus and E. coli mixed culture. Read More

A Tale of Two Strategies

Bacteria are for the most part gregarious organisms, living predominantly in dense communities consisting of multiple strains. In fact, the majority of infectious bacteria occur as multi-layered structures called biofilms, many of which are composed of multiple types of bacteria. As one can imag... Read More

Terms of Biology: The Pan-Genome

A still somewhat unfamiliar term is floating around: the pan-genome. In 2005, Tettelin et al. coined the term along with genome analyses of eight Streptococcus agalactiae strains, and Merry introduced it to this blog, some time back already. Today, a keyword search in PubMed returns roughly 200 ... Read More

ICAAC 2013 - Human Interferon Kills Resistant H7N9 Influenza


During the April 2013 avian influenza A (H7N9) outbreak, more than 130 human infections with H7N9 were reported. Most patients had ... Read More

Caribbean health experts warn of a rapidly spreading mosquito-borne virus

Caribbean health experts warned last week that they “cannot stop” a rapidly spreading mosquito-borne virus that has infected thousands and is associated with six deaths in the region.

The alert came as the Dominican Republic’s health ministry became the 15th Caribbean nation to confirm cases ... Read More

Early antibiotic exposure leads to lifelong metabolic disturbances in mice

Antibiotic exposure during a critical window of early development disrupts the bacterial landscape of the gut, home to trillions of diverse microbes, and permanently reprograms the body’s metabolism, setting up a predisposition to obesity, according to a new study. Moreover, the research shows t... Read More

Oddly Microbial: Selfish Genes*

Evolution is largely driven by conflict, not collaboration, according to cell evolutionist Harmit Malik at the Fred Hutchinson Cancer Research Center (FHCRC). Mammalian cells are contentious places, he explains, populated by alien and host genomic sequences fighting for dominance. "In the compet... Read More

ULTRASMALL BACTERIA FROM ANTARCTIC LAKE RAISE QUESTIONS ABOUT THE LIMITS OF LIFE

Imagine you were forced to live in perpetually subzero temperatures, with no oxygen, no light, and way more salt than your system could handle. How would you manage? One way might be to get extremely small. At least, that seems to be what’s happening in a frozen Antarctic lake that’s cut off fro... Read More

ICAAC 2013 - The Role of Vitamin D Supplements in Preventing and Treating Disease

 


There is much interest in the role of nutrients and micronutrients in the support of host defense against infections. How... Read More

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