Quantcast

Latest Toxoplasma gondii Stories

2011-10-06 09:09:04

North American babies who acquire toxoplasmosis infections in the womb show much higher rates of brain and eye damage than European infants with the same infection, according to new research from the Stanford University School of Medicine. Eighty-four percent of the North American infants studied had serious complications of the parasitic infection, including calcium deposits in the brain, water on the brain and eye disease that caused visual impairment or blindness. By contrast, few...

2011-09-21 19:08:10

Toxoplasma gondii parasites can invade your bloodstream, break into your brain and prompt behavioral changes from recklessness to neuroticism. These highly contagious protozoa infect more than half the world's population, and most people's immune systems never purge the intruders. Cornell researchers recently discovered how T. gondii evades our defenses by hacking immune cells, making it the first known parasite to control its host's immune system. Immunologists from the College of...

17ee163d88cf4442178cfe0f65a6da1a
2011-08-19 15:56:23

When a male rat senses the presence of a fetching female rat, a certain region of his brain lights up with neural activity, in anticipation of romance. Now Stanford University researchers have discovered that in male rats infected with the parasite Toxoplasma, the same region responds just as strongly to the odor of cat urine. Is it time to dim the lights and cue the Rachmaninoff for some cross-species canoodling? "Well, we see activity in the pathway that normally controls how male...

2011-08-18 14:41:32

A press release from PLoS ONE New research shows how a brain parasite can manipulate rodent fear responses for the parasite's own benefit. The study, authored by Patrick House and Dr. Robert Sapolsky of Stanford University and released this week in PloS One, addressed how the single-celled parasite Toxoplasma gondii makes infected rodents more likely to spend time near cat odors. The study finds Toxoplasma-infected male rats have altered activation in brain regions involved in fear and...

2011-06-06 11:00:00

PARIS and EVRY, France, June 6, 2011 /PRNewswire/ -- Cellectis (Alternext: ALCLS), the genome engineering specialist, and VitamFero, a biotech company of the Genopole® portfolio developing new vaccines against parasite infections, today announced the signing of a research, development and licensing partnership agreement. This agreement will grant VitamFero access to Cellectis' proprietary meganuclease technology for the design and development of a new generation of living...

2011-05-19 09:36:00

SILVER SPRING, Md., May 19, 2011 /PRNewswire-USNewswire/ -- On May 18, the U.S. Food and Drug Administration cleared the first test to help determine whether a pregnant woman or a person with swollen lymph nodes testing positive for toxoplasmosis, sometimes known as cat scratch disease, developed the infection within the past four months. (Logo: http://photos.prnewswire.com/prnh/20090824/FDALOGO) Toxoplasmosis is caused by the parasite Toxoplasma gondii. The infection can cause serious...

1f1a5ae471adc4fbadda5f847e153b12
2011-05-15 09:56:07

Researchers tracking the spread of Toxoplasma gondii "“ a parasite that reproduces only in cats but sickens and kills many other animals "“ have found infected wildlife throughout a 1,500-acre (600-hectare) natural area in central Illinois.The researchers also found dozens of free-ranging cats in the area, the Robert Allerton Park, near Monticello, Ill. Two years of tracking, trapping and motion-triggered night photography at eight sites in the park found no evidence of bobcats,...

2011-03-14 20:42:33

Providing clues into why the severity of a common parasitic infection can vary greatly from person to person, a new Johns Hopkins study shows that each one of three strains of the cat-borne parasite Toxoplasma gondii sets off a unique reaction in the nerve cells it invades. Past research suggests that the parasite, estimated to infect 25 percent of people worldwide, can trigger or exacerbate psychotic symptoms and schizophrenia in genetically predisposed people. The findings of the new study,...

2011-01-04 14:02:00

Biologist shows why some strains are more dangerous than others About one-third of the human population is infected with a parasite called Toxoplasma gondii, but most of them don't know it. Though Toxoplasma causes no symptoms in most people, it can be harmful to individuals with suppressed immune systems, and to fetuses whose mothers become infected during pregnancy. Toxoplasma spores are found in dirt and easily infect farm animals such as cows, sheep, pigs and chickens. Humans can be...

d7c2e1fb708feede6893da53157d6f1d1
2010-12-29 09:38:09

By Michael Purdy, Washington University in St. Louis Researchers at Washington University School of Medicine in St. Louis have learned why changes in a single gene, ROP18, contribute substantially to dangerous forms of the parasite Toxoplasma gondii. The answer has likely moved science a step closer to new ways to beat Toxoplasma and many other parasites. In a study published in Cell Host & Microbe, scientists show that the ROP18 protein disables host cell proteins that would otherwise...


Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
Related