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TWiV 162: Transcription



Hosts: Vincent Racaniello, Rich Condit... Read More

The Secret of Weight Loss May Be In 3,000-Year-Old Mummy Poop

Scientists may have found one of the keys to weight loss hiding in the poop of 3,000-year-old mummies. The bacterial DNA found in their guts is very different from our modern intestinal flora.

The reason: chlorinated water and antibiotics.
That's the first hypothesis of Dr. Cecil Lewis. Acco... Read More

The Race To Create The Best Antiviral Drugs

If you've ever had a bacterial infection like staph or strep throat, your doctor may have prescribed penicillin. But if you've had the flu or a common cold virus, penicillin won't work. That's because antibacterials only kill bacteria, and both the flu and the common cold are viruses. So for ill... Read More

Microbiology: Learning about who we are

Microbial inhabitants outnumber our body's own cells by about ten to one. These residents have become the subject of intensive research, which is beginning to elucidate their roles in health and disease.

Two journal articles by, David A. Relman, Departments of Medicine and of Microbiology and... Read More

Goat milk holds malaria vaccine

The latest episode of the Animal Science Podcast from the American Society of Animal Science interviews researcher Mark Westhusin at Texas A&M University which recently announced the birth of a genetically modified goat that produces a malaria vaccine in its milk. This goat could help people in ... Read More

CDC says C. difficile infections at “historic high”

It’s become a sad fact that many people being treated in health-care facilities end up catching a bad -- and potentially deadly -- bug in the very place where they’re supposed to get better.

A report on the increased incidence of clostridium difficile infections in hospitals and other health-... Read More

Virus Find Helps Mystery Disease Probe in Cambodia

The investigation of a mystery disease that has killed dozens of children in Cambodia is advancing after the discovery in patient samples of a virus that causes hand, foot and mouth disease.

The Institut Pasteur du Cambodge found enterovirus 71 in 15 of 24 patients sampled since mid-June, Phi... Read More

TWiP 32 Letters

Raihan writes:

Hi Guys,


I saw this video during the course of listening to TWiP. Is there any parasitic truth behind this phenomenon?
http://www.youtube.com/watch?v=mL_48wUQeXQ


Amaz... Read More

Trillions of Fat-Eating Bacteria Invade Town

Water is set to use a new biological weapon to flush away Whitby residents’ festive fat.

Over the Christmas period trillions of fat-busting bugs have been deployed in the sewers of Whitby to feast on fat, oils and grease.

Over time these substances build up on the inside of sewer pipes, re... Read More

How Salmonella forms evil twins to evade the body's defenses

An unusual regulatory mechanism that controls the swimmer/non-swimmer option in genetically identical Salmonella also impacts the bacteria's ability to cause infection.

University of Washington scientists reported the discovery this week in the Proceedings of the National Academy of Sciences.... Read More

Capturing viruses with bacteria

When my laboratory discovered the cell receptor for poliovirus in 1989, many new research directions were suddenly revealed – such as creating a mouse model for poliomyelitis. One application we did not think of was to use the receptor to screen samples of drinking water for the presence of viru... Read More

A spike for piercing the cell membrane

Some viruses that infect bacteria (bacteriophages) deliver their DNA into the host cell with an amazing injection machine. The tailed bacteriophages (such as T4, illustrated) store their DNA in a capsid attached to a long tail tube that is surrounded by a sheath. At the bottom of the tube is a b... Read More

Bacteria ‘munching’ on Titanic: scientists

In less than 30 years, there may be nothing left of the Titanic but a heap of “rusticles,” warns researcher Henrietta Mann, who has spent four years researching bacteria gnawing on its sunken hull.

A scientific expedition in 1991 to the disintegrating wreck some 12,400 feet (3,780 meters) to ... Read More

Sick People Smell Bad: Why dogs sniff dogs, humans sniff humans, and dogs sometimes sniff humans

A man can live many lives. Paul Ehrlich has. Once, he was a butterfly biologist. Another time, he wrote the book called The Population Bomb, a book that triggered global conversations about the fate of humanity. Still another, he described the relationship between plants and the animals that eat... Read More

A microbiology video game is being made, and needs your help on kickstarter

Bacillus is a video game named after the organism the developer studied in college. It's very different from other video games in that it features an accurate model for evolution. So accurate, every bacteria in the game has it's own genome (represented by A's T's C's and G's of course). But the ... Read More

Ultraviolet rays believed to prevent chickenpox spreading

Ultraviolet rays help prevent the spread of chickenpox, meaning people in milder climates are more at risk of catching the disease, according to new research. The discovery could lead to new ways of preventing chickenpox and its more severe relative, shingles.

A researcher at St George’s, Uni... Read More

Genetic variation in human gut viruses could be raw material for inner evolution

A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect those bacteria also shape who we are. Frederic D. Bushman, PhD, professor of Microbiology at the Perelman ... Read More

Harmful Bacteria Can Be Curbed With Copper

Salmonella enterica is a leading cause of diarrhea illness worldwide, according to Sadhana Ravishankar, an assistant professor in the University of Arizona department of veterinary science and microbiology.

Each year the tiny, rod-shaped species of bacteria with a love for rapid reproduction ... Read More

Food borne bacteria sickens 8 in Illinois, 93 nationwide

Food safety officials are investigating whether raw fish in sushi and other foods is responsible for a multi-state Salmonella outbreak that has sickened eight people in Illinois.

So far, no deaths have been connected to the strain of the bacteria, which has sent 10 people to the hospital and ... Read More

Biofuel Research Boosted by Discovery of How Cyanobacteria Make Energy

A generally accepted, 44-year-old assumption about how certain kinds of bacteria make energy and synthesize cell materials has been shown to be incorrect by a team of scientists led by Donald Bryant, the Ernest C. Pollard Professor of Biotechnology at Penn State and a research professor in the D... Read More

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