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Latest Acid fast bacilli Stories

2010-05-10 12:49:41

Study led by Weill Cornell Medical College and published in the journal PNAS Tuberculosis (TB) has been present in humans since ancient times. The origins of the disease date back to the first domestication of cattle, and skeletal remains show prehistoric humans (4,000 B.C.) had TB. Although relatively rare in the United States, it is the single leading bacterial cause of death worldwide. Approximately 8 million people are infected each year and 2 million people die from TB. The cause of...

2010-04-01 08:52:16

Mycobacterium tuberculosis (Mtb) possesses extraordinary survival ability by masking itself from the host immune system and persisting for decades inside the host. Speaking at the Society for General Microbiology's spring meeting in Edinburgh on March 31, Dr Kristine Arnvig provided further insight into how the bacterium causes tuberculosis (TB) by fine-tuning its behavior in response to its surroundings to escape detection. Understanding the genetic tools and tricks used by Mtb to control...

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2010-03-29 07:05:26

The factors instrumental in triggering latent tuberculosis (TB) infection to progress into active disease have long remained elusive to researchers. New insight into the mystery is provided by Professor David Russell, speaking at the Society for General Microbiology's spring meeting in Edinburgh on Sunday. His work could help develop innovative strategies for treating the disease. Professor Russell and his group at Cornell University in New York, USA, have demonstrated that TB-causing...

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2010-03-22 06:35:00

Findings could help tame extremely drug-resistant strains Researchers at Albert Einstein College of Medicine of Yeshiva University have found two novel ways of killing the bacteria that cause tuberculosis (TB), a disease responsible for an estimated two million deaths each year. The findings, published in the March 21 online issue of Nature Chemical Biology, could lead to a potent TB therapy that would also prevent resistant TB strains from developing. "This approach is totally different from...

2010-02-11 08:20:03

Badger culling is unlikely to be a cost-effective way of helping control cattle TB in Britain, according to research published today in PLoS ONE. The authors of the study, from Imperial College London and the Zoological Society of London, say their findings suggest that the benefits of repeated widespread badger culling, in terms of reducing the incidence of cattle TB, disappear within four years after the culling has ended. Bovine tuberculosis (bTB) is a disease in cattle that has a serious...

2009-12-01 13:38:53

Researchers at the MUHC and their international colleagues have identified the first genetic resistance factor against tuberculosis infection Why do some people who are exposed to tuberculosis not become infected or develop the disease? Dr. Erwin Schurr and his team at the Research Institute from the McGill University Health Centre (RI-MUHC), in collaboration with Dr. Alexandre Alcais, from the Institut national de la sant© et de la recherche m©dicale (INSERM) in Paris, has shed...

2009-11-02 12:55:05

For thousands of years an undesirable and persistent companion has been traveling with man wherever he goes. Mycobacterium leprae, the bacterium that causes leprosy, has only one known natural host "“ mankind. And because of man's many travels, this bacillus has colonized the entire earth. Its history is therefore intimately tied to our own, and it is this migratory relationship that Stewart Cole, EPFL professor of Microbial Pathogenesis, and his team have analyzed in a study to be...

2009-10-07 11:43:04

A bacterium possibly linked to Crohn's disease could be lurking in wild animals. According to research published in the open access journal BMC Microbiology, Mycobacterium avium subspecies paratuberculosis (Map), can be transmitted between wildlife and domestic ruminants, supporting the theory of wildlife reservoirs of infection. A research team lead by Karen Stevenson, from the Moredun Research Institute in Scotland, used three different genotyping techniques to identify specific strains of...

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2009-10-02 10:51:08

Researchers at Iowa State University have identified an enzyme that helps make tuberculosis resistant to a human's natural defense system. Researchers have also found a method to possibly neutralize that enzyme, which may someday lead to a cure for tuberculosis. Tuberculosis is caused by Mycobacterium tuberculosis and is a contagious disease that is on the rise, killing 1.5 to 2 million people worldwide annually. Reuben Peters, associate professor in the department of biochemistry, biophysics...

2009-08-13 11:10:12

A British government scientist is believed to have contracted bovine tuberculosis from an infected badger, a government official said. Thirty other staff members employed by the government's Food and Environment Research Agency in Woodchester, England, near Stroud, are also being tested for the often deadly infectious disease, said Alison Wilson, FERA's head of executive support. This is the first time a suspected case of mycobacterium bovis has jumped the species barrier and caused human...


Latest Acid fast bacilli Reference Libraries

72_0ab04c9452ae9b3c6ae51f6deb1bcc35
2011-04-25 16:19:14

Mycobacterium tuberculosis (MTB) is a pathogenic bacterial species in the genus Mycobacterium and the causative agent of most cases of tuberculosis. Robert Koch first discovered it in 1882 and that it had an unusual, waxy coating on the cell surface which makes them impossible to Gram stain. M. tuberculosis is highly aerobic and requires high levels of oxygen. It generally infects the respiratory system of mammals. Tuberculin skin test, acid-fast stain, and chest radiographs are the most...

0_b33ceb9bb58e871b533817f5a6385ba1
2011-04-25 15:56:48

Mycobacterium smegmatis is 3.0 to 5.0 µm long with a bacillus shape, an acid-fast bacterial species in the phylum Actinobacteria. It can be stained by Ziehl-Neelsen method and the auramine-rhodamine fluorescent method. It was first reported in 1884. Alvarez and Tavel found organisms similar to Lustgarten, who first discovered Mycobacterium. This organism was later named M. smegmatis. It is considered a non-pathogenic microorganism although, in rare cases, it can cause disease. M....

0_da8e53266fdcbd2830a775ec887963be
2011-04-25 15:36:41

Mycobacterium leprae, mostly found in warm tropical countries, is a bacterium that causes leprosy (Hansen's disease). It is an intracellular, pleomorphic, acid-fast bacterium. M. leprae is an aerobic rod-shaped surrounded by the characteristic waxy coating unique to mycobacteria tuberculosis. Due to its thick waxy coating, M. leprae stains with a carbol fuscin rather than with the traditional Gram stain. Gerhard Armauer Hansen first discovered it in 1873. It was the first bacterium to be...

45_255d6ba67dfe6f32b9c7c31f338bf912
2011-04-18 22:11:24

Mycobacterium bovis is a slow-growing, aerobic bacterium and the causative agent of tuberculosis in cattle. Similar to M. tuberculosis, M. bovis can jump the species barrier and cause tuberculosis in humans. It is estimated that M. bovis was responsible for more losses among farm animals than all other diseases combined in the first half of the 20th century. Infection happens after bacterium is ingested. It is generally transmitted to humans via infected milk. Actual human infections are...

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Word of the Day
monteith
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'
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