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Human gut microbes hold 'second genome'

The human gut holds microbes containing millions of genes, say scientists.

In fact, there are more genes in the flora in the intestinal system than the rest of our bodies. So many that they are being dubbed our "second genome".

A study published in the journal Nature details the analysis o... Read More

Quick reference: Determining DNA Concentration and Purity

The most comprehensive way to evaluate DNA concentration and purity is to use both UV spectrophotometeric measurements and agarose gel eletrophoresis. This quick reference guide gives an overview of the information that can be derived from both.

This article is a clear and concise guide to th... Read More

Grad School is for Life, Not Just for Science

You are going to spend at least 4 years or more in graduate school, and around 3-5 years in a postdoc position. That’s a big chunk of your life, so apart from doing experiments, writing papers or your thesis and maybe doing some teaching, what else are you doing?

To paraphrase one of my favor... Read More

FDA warns about a little something extra in two brands of hand sanitizer

How’s this for irony – the U.S. Food and Drug Administration is warning consumers to stop using two brands of hand sanitizers because they contain … dangerous bacteria.

That’s right. “Bee-Shield Hand Sanitizer” and “MD Quality Hand Sanitizer” (both made with aloe vera) were found to have high... Read More

TWiP 5 - The nurse cell



Vincent and Dick discuss the nurse cell, a unique structure formed in the host muscle by Trichinella species.


Download  Read More

Welcome to Extreme Biology! Violin-making and fungi

Welcome to Ms. Baker and her biology students extreme biology blog! This is perhaps one of the best high school student blogs I have ever seen.

In Extreme Biology, students post about "anything biology-related." Check out the post by Amy Ciardiello, a 9th grade violinist, who writes about "v... Read More

Climate change will impact infectious diseases worldwide, but questions remain as to how

As climatologists weather the IPCC controversy, another storm is brewing, and this one is filled with not with bloggers but with beasts, bugs and bacteria. It is the potential plague of infectious diseases—threatened to be made worse, many scientists propose, by projected changes in the Earth's ... Read More

Researchers Examine Plant’s Ability To Identify, Block Invading Bacteria

Understanding how plants defend themselves from bacterial infections may help researchers understand how people and other animals could be better protected from such pathogens.

That’s the idea behind a study to observe a specific bacteria that infects tomatoes but normally does not bother the... Read More

Plasmodium ovale

Plasmodium ovale immature schizont (1000X) Read More

Mundo de los Microbios - Episodio 43



Titulares: vigilancia universal del MRSA, el poder del Shitake, transmisión de Clostridium difficile, y bacterias en las lentes de contacto.

Vigilancia universal del MRSA


Muchos p... Read More

UCLA engineers develop faster method to detect bacterial contamination in coastal waters

Currently, beachgoers are informed about water-quality conditions based on results from the previous day's sample. Scientists must collect samples in the field, then return to a lab to culture them for analysis — a process that takes a minimum of 24 hours.

Now, engineers from the UCLA Henry ... Read More

Foodborne Illness Costs US $152 Billion Annually, Landmark Report Estimates

A new study by a former U.S. Food and Drug Administration (FDA) economist estimates the total economic impact of foodborne illness across the nation to be a combined $152 billion annually.

The Produce Safety Project, an initiative of The Pew Charitable Trusts at Georgetown University, publish... Read More

Probing life’s extremes in Yellowstone

Idaho National Laboratory biologist Frank Roberto squats on a gravelly patch of ground in Yellowstone National Park. At his feet, scalding water churns in a mustard-yellow pool the size of a wheelbarrow. Roberto reaches in with a plastic vial and scoops up a half-cup.

“That’s a good sample,” ... Read More

Mini Magnets Comprise Ancient Bacteria

Scientists in Manchester, UK have found a clean and green way of making tiny magnets for high tech gadgets—using natural bacteria that have been around for millions of years. The work by a team of geomicrobiologists from the Univ. of Manchester paves the way for nanometer-size magnets – used in ... Read More

Nanofactories monitor bacteria communication


Scientists in the US have developed a microdevice that investigates how bacteria communicate with each other to enhance their resistance to drugs.

Bacteria communicate in a process called quorum sensing, in which they secrete small signalling molecules called autoinducers. When bacteria pr... Read More

Call for Nominations Closes June 30 for the 2010 Awards for Excellence in Inter-American Public Health

Nominations are being accepted online now through June 30, 2010, 5:00 p.m. EST, at http://www.pahef.org/awards/nominations for four of the 2010 Awards for Excellence in Inter-American Public Health, a joint program of the Pan American Health and Education Foundation (PAHEF) and the Pan American ... Read More

Prevention: Older Women Are Not Likely to Benefit From Cervical Cancer Vaccine

Women older than 40 are unlikely to get much benefit from the vaccine for the virus that causes cervical cancer, a new study reports.

The vaccine for human papillomavirus, or HPV, is recommended for women up to age 26 and girls as young as 9. To determine whether older women might be protect... Read More

Illustration of Toxoplasma gondii

Illustration of Toxoplasma gondii-extraintestinal cycle in cells of mammals Read More

Tuberculosis: North Korea Develops TB Laboratory With Help From American Doctors

With help from scientists from Stanford University’s medical school, North Korea has developed its first laboratory capable of detecting drug-resistant tuberculosis, scientists involved in the project said last week.

Tuberculosis surged in the Democratic People’s Republic of Korea during the... Read More

Anti-Bacterial Defences (Animation)

















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