Archive for February 23rd, 2012

And you thought dog poop was a problem?


An eccentric Czech scientist says a single-celled parasite that can be passed on through contact with cat feces can lead people to behave in strange and destructive ways.

And Jaroslav Flegr has more than studies to back up his theory. He has the parasite — Toxoplasma gondii (or Toxo for short).

Flegr and his work are profiled in a fascinating (and scary) article this month in The Atlantic, which describes the 63-year-old evolutionary biologist as a “sloppy dresser … with the contemplative air of someone habitually lost in thought” and “frizzy red hair that encircles his head like a ring of fire.”

Flegr, the article says, has pursued his theory for decades in relative obscurity — partly because he’s not much of a conversationalist and rarely goes to scientific conferences, partly, he says, because people just don’t want to hear it.

“There is strong psychological resistance to the possibility that human behavior can be influenced by some stupid parasite,” he says. “Nobody likes to feel like a puppet.”

His theory is gaining credence, though, The Atlantic reports.

That parasites can be passed on through cat feces is nothing new, as the article notes:

Since the 1920s, doctors have recognized that a woman who becomes infected during pregnancy can transmit the disease to the fetus, in some cases resulting in severe brain damage or death … (It’s) the reason pregnant women are told to avoid cats’ litter boxes. T. gondii is also a major threat to people with weakened immunity: in the early days of the AIDS epidemic, before good antiretroviral drugs were developed, it was to blame for the dementia that afflicted many patients at the disease’s end stage. Healthy children and adults, however, usually experience nothing worse than brief flu-like symptoms before quickly fighting off the protozoan, which thereafter lies dormant inside brain cells—or at least that’s the standard medical wisdom.

Flegr thinks that, even in its latent stage, the parasite may be messing with the connections between our neurons, affecting our response to frightening situations, our outgoingness, our trust of others and our preference for certain scents.

He thinks the organism is a factor in car crashes, suicides, and mental disorders such as schizophrenia. All tolled, he says, it might be, in an indirect kind of way, killing a million people a year.

Flegr had long wondered about his own behavior. Sometimes, he didn’t move out of the way of oncoming traffic, and exhibited other behaviors that might be described as self-destructive. He began to suspect that a single-celled parasite in the protozoan family was manipulating his personality.

In 1990, he joined the biology faculty of Charles University, which was a leader in documenting the health effects of T. gondii and in developing methods for detecting the parasite.

Colleagues searching for infected individuals on whom to test their improved diagnostic kits asked him to volunteer, and that’s when he confirmed he had the parasite.

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Mastiff recovering after eating a hunk of brie, and the cheese knife, too

A bull mastiff named Bean is recovering from surgery last month after wolfing down a hunk of brie, and a three-inch cheese knife.

Sean Burte said he put the brie and knife on a coffee table in his home in Roslindale, Mass., and walked away briefly.

That’s when Bean, a 118-pound female, seized the opportunity, jumped on the table and swallowed both.

Burte rushed his dog to Angell Animal Medical Center, where veterinarians confirmed the dog had the knife in her stomach, CBS in Boston reported.

Bean swallowed the knife handle-first, so she suffered no cuts to her throat or stomach.

“Bean is a very lucky dog because her size, and the position the knife was in when she swallowed it, minimized further damage to her throat and stomach,” said Dr. Mike Pavletic, head of Angell’s surgery department. “She did very well throughout the surgery and we’re glad to see her recuperating at home.”

Note left at dog’s grave tips off police

Given the conflicting and changing accounts of a dog’s owner and his girlfriend, what killed Raider was a mystery — until police received a note left at the dog’s grave.

The couple had brought the mixed breed dog to an emergency veterinary clinic, where they initially explained Raider had fallen from their second floor balcony. But upon learning the dog was dead, the boyfriend said his girlfriend had thrown the dog off the balcony.

Police in Fishers, Indiana, meanwhile, investigating a complaint they’d received about a dispute at the residence, said they got similar conflicting reports when interviewing the boyfriend.

Detectives talked to neighbors, friends, and the veterinarian that tried to save the dog, but it was a note found later at the dog’s grave that led them to arrest the girlfriend, 28-year-old Sarah E. Rust, on animal cruelty charges last Friday. She was taken to the Hamilton County Jail.

In an interesting twist, police said they received the letter from the dog owner’s ex-girlfriend, and part owner of the dog, who found it at Raider’s grave.

Investigators say the letter was written by Rust:

“Dear Raider, First and foremost forgive me, but also forgive me and your daddy for fighting. We brought your life into our quarrel. You did not deserve to be any part of our combat. I ended your life, for which I am truly sorry my son.”

German shepherd chases big cat up a tree

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A German shepherd chased a mountain lion up a tree Tuesday morning in Los Altos.

Cody, an 85-pound shepherd, was smaller, but apparently more fearless than the 110-pound cat, which sought refuge 30 feet up an oak tree at an upscale home in Los Altos.

That’s where was the California Department of Fish and Game found him, and decided to leave him alone, according to NBC. The mountain lion eventually came down the tree and left the area.