Virulence

K-State Researcher, Collaborators Study Virulence of Pandemic H1N1 Virus; Work at K-State Would Protect Pig Industry If the Virus Jumps to Swine Populations

MANHATTAN, Kan., Aug. 3 /PRNewswire-USNewswire/ -- Laboratory studies at Kansas State University and the work of a K-State researcher are making headway in the effort to control the pandemic H1N1 virus. Juergen Richt is a Regents Distinguished Professor at K-State's College of Vet...

Key to virulence protein entry into host cells discovered

Blacksburg, Va. Researchers from the Virginia Bioinformatics Institute (VBI) at Virginia Tech have identified the region of a large family of virulence proteins in oomycete plant pathogens that enables the proteins to enter the cells of their hosts. The protein region contains the amino acid sequ...

Huge virulence gene superfamily responsible for devastating plant diseases

Blacksburg, Va. A research team from the Virginia Bioinformatics Institute at Virginia Tech has identified an enormous superfamily of pathogen genes involved in the infection of plants. The Avh superfamily comprises genes found in the plant pathogens Phytophthora ramorum and Phytophthora sojae. T...

Key Anthrax Virulence Factor Discovered

Bacterial nitric oxide protects pathogen from immune system attacks THURSDAY, Jan. 24 (HealthDay News) -- Researchers have discovered how the anthrax bacterium protects itself from the immune system's biochemical assault. The results reveal not only a novel aspect of anthrax virule...

Key to MRSA Virulence in Community Discovered

Bacteria target immune system cells sent to kill them, study finds MONDAY, Nov. 12 (HealthDay News) -- Researchers have uncovered a cache of molecular weapons that helps make community-associated methicillin-resistant Staphylococcus aureus (MRSA) so virulent. Though more work must...

Normal Cells May Predict Cancer Virulence

Finding suggests that treatment that only aims at malignant cells might fall short THURSDAY, Aug. 28 (HealthDay News) -- Characteristics of normal cells which are present long before any tumor appears may determine how virulent a particular cancer is going to be, new research suggests...

Novel approach strips staph of virulence

An international team of researchers supported by the National Institutes of Health (NIH) has blocked staph infections in mice using a drug previously tested in clinical trials as a cholesterol-lowering agent. The novel approach, described in the February 14 online edition of Science, could offer ...

Mutant Parasites, Unable to Infect Hosts, Highlight Virulence Genes

MADISON - With a single approach, microbiologists at the University of Wisconsin-Madison have identified dozens of clues to how human parasites may infect their hosts . The researchers identified nearly 40 genes that, when mutated in the common parasite Toxoplasma gondii, prevented the para...

Genes key to staph disease severity, drug resistance found hitchhiking together

... that genetic factors that affect Staphylococcus virulence and drug resistance can be transferred from one st...erium to another. Staph bacteria also can exchange virulence genes using the same mechanism, but this was previ...ey. "The discovery that bundled genes determine virulence and antimicrobial resistance suggests a new resear...

Report Gives U.S. Good Grades for Swine Flu Response

... notice because it emerges in the Far East," said Fleming, who spoke at the news conference. "We were wrong on two counts. The swine flu was of normal virulence and we had no warning. In the first couple of days, we were adhering to our plan with policies and procedures that did not match the severity of the s...

Virulence in Medical Technology

USAID Provides $5M in Emergency Support as Swine Flu Spreads

...from the U.S. Centers for Disease Control and Prevention, to work with authorities in Mexico. The team will further investigate and characterize the virulence and transmission dynamics of the disease. USAID is responding to the international outbreak in coordination with the Centers for Disease Control an...

Paratek Reports Positive Phase 2 Clinical Data on its New Antibiotic PTK 0796 in Late Breaker Presentation at the 48th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy

...identified small molecules that inhibit bacteria-specific transcription factors for Multiple Adaptational Response (MAR) genes which control bacterial virulence and resistance development. Based upon a growing body of clinical research and as part of its effort to exploit its novel tetracycline derivatives a...

Paratek to Present Clinical Data in Late Breaker Presentation at the 48th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy

...identified small molecules that inhibit bacteria-specific transcription factors for Multiple Adaptational Response (MAR) genes which control bacterial virulence and resistance development. Based upon a growing body of clinical research and as part of its effort to exploit its novel tetracycline derivatives a...

Isis Announces $1.2 Million Award to Its Ibis Subsidiary to Expand Influenza Detection Capabilities and Enable Large-Scale Influenza Transmission Studies

...ectious agents. The Ibis T5000 is capable of identifying virtually all bacteria, viruses and fungi, and can provide information about drug resistance, virulence and strain type of these pathogens. Commercial applications for the Ibis T5000 Biosensor System include epidemiologic surveillance, monitoring of pand...

Promising Data from Paratek Pharmaceuticals' MAR Inhibitor Program Presented in 'Late Breaker' Session at the 47th Interscience Conference on Antimicrobial Agents and Chemotherapy

... bacteria serve as the "master switch" controlling virulence and antibiotic resistance. Paratek has shown that shutting down this switch disables bacterial virulence and prevents bacteria from causing infection. Para...domonas aeruginosa significantly reduced bacterial virulence and were protective in an animal model from pneumo...

Study Confirms Limited Human-To-Human Spread of Avian-Flu Virus in Indonesia in 2006

...iate vaccine supply could be made available. That's why it's so important to ascertain whether human-to-human transmission is happening as well as the virulence of the strain." The researchers estimated the secondary-attack rate of the virus in Indonesia -- the risk of one infected person passing it to another...

Replikins LLC Finds West Nile Virus Replikin Count Has Reached Its Highest Recorded Value

...centration of replikins (p less than 0.001), also has been isolated in silico. Analysis of RPG permits a more accurate forecast, and comparison of the virulence of the current and past versions of the organism. (See http://www.replikins.com for quantitative data in Figures and press releases.) Earlier work ...

Virulence in Medical Dictionary

Streptococcal infections

...is a form of β-hemolytic Streptococcus bacteria responsible for most cases of streptococcal illness. Other types may also cause infection. Several virulence factors contribute to the pathogenesis of GAS, such as M protein, hemolysins,... More about Streptococcal Infections : Causes and symptoms Diag...

Streptococcal Infection

... a form of β-hemolytic Streptococcus bacteria responsible for most cases of streptococcal illness. Other types may also cause infection . Several virulence factors contribute to the pathogenesis of GAS, such as M protein, hemolysins,... (Redirected from Streptococcal infection ) Jump to: naviga...

Escherichia coli

... with Shiga-Toxin-Producing Escherichia coli O103:H2 ... Differences in virulence among Escherichia coli O157:H7 Strains Isolated from ... agricultur...d for ... Detection in Escherichia coli of the Genes Encoding the Major virulence Factors, ... One of these two-component systems in Escherichia coli ...

BCG

...erculosis that is prepared from a strain of the attenuated (weakened) live bovine tuberculosis bacillus, Mycobacterium bovis, that has lost its virulence in humans by being... The Boston Consulting Group ( BCG ) is a global management consulting firm, founded by Bruce Henderson in 1963. It has 66 of...

Anaerobic bacteria

...ng the ... Because aerobic and anaerobic bacteria frequently are found in the same infected ... Some anaerobic bacteria possess distinct virulence factors. ... Theodore Puck Biography, Kirby Puckett Biography, Daniel Radcliffe Biography, Estelle R. Ramey Biography, Lou Rawls ... An anaerobic...

Virulence in Biological News

K-State researcher, collaborators study virulence of pandemic H1N1 virus

Laboratory studies at Kansas State University and the work of a K-State researcher are making headway in the effort to control the pandemic H1N1 virus. Juergen Richt is a Regents Distinguished Professor at K-State's College of Veterinary Medicine and is a Kansas Bioscience Authority Eminent Sch...

Brucella abortus S19 genome sequenced; points toward virulence genes

Blacksburg, Va. Researchers at the Virginia Bioinformatics Institute at Virginia Tech and the National Animal Disease Center in Ames, Iowa, and collaborators at 454 Life Sciences of Branford, Conn., have sequenced the genome of Brucella abortus strain S19. Strain S19 is a naturally occurring st...

Pathogen virulence proteins suppress plant immunity

Blacksburg, Va. Researchers from the Virginia Bioinformatics Institute (VBI) at Virginia Tech and their colleagues have identified a key function of a large family of virulence proteins that play an important role in the production of infectious disease by the plant pathogen Phytophthora sojae. ...

A wolf in sheep's clothing: Plague bacteria reveal one of their virulence tricks

The bacterium that causes the plague belongs to a virulent family of bacteria called Yersinia, a group that also includes a pathogen responsible for food poisoning. These bacteria insert into their host cells proteins and other virulence factors, which kill by -- among other things -- disrupting th...

Mouse study reveals new clues about virulence of 1918 influenza virus

The first comprehensive analysis of an animal's immune response to the 1918 influenza virus provides new insights into the killer flu, report federally supported scientists in an article appearing online today in the journal Nature. Key among these insights, they found that the 1918 virus triggers ...

HIV-1's high virulence might be an accident of evolution

The virulence characteristic of HIV-1--the virus predominantly responsible for human AIDS--might amount to an accident of evolution, new evidence reveals. A gene function lost during the course of viral evolution predisposed HIV-1 to spur the fatal immune system failures that are the hallmarks of A...

Novel plague virulence factor identified

Researchers at Duke University Medical Center have identified a previously unknown family of virulence factors that make the bacterium responsible for the plague especially efficient at killing its host. In the process, the team not only demonstrated that the use of the common roundworm is a vali...

Microbes and their hosts -- exploring the complexity of symbiosis in DNA and cell biology

...es: Functional Plasticity in Constrained Mutualisms." Adam Silver and Joerg Graf from the University of Connecticut, in Storrs, explore the role of virulence factors and specific toxins produced by members of the Aeromonas veronii bacterial group in the article "Prevalence of Genes Encoding the Type Three S...

Reviews of microbial gene language published in special issue of Trends in Microbiology

...ect the complex interactions involved when pathogens invade their hosts and lead to disease. They include descriptions of bacterial effector proteins, virulence factors, effector protein delivery systems, and infection by filamentous pathogens. Joo Setubal, Associate Professor at the Virginia Bioinformatics In...

A matter of density, not quantity

...n particular are often caused by bacteria called Pseudomonas aeruginosa. Once they reach a certain density, colonies of Pseudomonas aeruginosa produce virulence factors and can enter into a slimy state, a biofilm, which prevents antibiotics from penetrating. The process of quorum sensing, which cells use to "s...

Virulence in Biological Technology

CEL-SCI Corporation Releases Letter to Shareholders

...t anticipate its evolution and prepare for mutant strains to appear from remote regions of the globe. Those mutant strains of the virus could possess virulence and other properties that far exceed those of the current strains. We believe the therapeutic and longer-term preventative vaccine approaches we are ...

Abbott Exercises Its Option to Acquire Ibis Biosciences, a Subsidiary of Isis

... in diagnostic procedures. It is capable of identifying virtually all bacteria, viruses and fungi, and can provide information about drug resistance, virulence and strain type of these pathogens. Commercial applications for the Ibis T5000 Biosensor System include epidemiologic surveillance, monitoring of pan...

STC.UNM Signs License Option Agreement With GeneThera for E. coli O157:H7 Vaccine

...NM but now Chief of Environmental Microbiology in the Maryland Department of Health. These bacteria are harmless to humans and animals because the key virulence genes of the bugs are mutated by molecular approaches. According to the CDC, " ... there may be about 70,000 infections with E. coli O157 each year ...

Isis' Ibis Biosciences Subsidiary Highlights the Power of the Ibis T5000 Pathogen Identification and Characterization System at the ICAAC/IDSA Meeting

...e in diagnostic procedures. It is capable of identifying virtually all bacteria, viruses and fungi, and can provide information about drug resistance, virulence and strain type of these pathogens. Commercial applications for the Ibis T5000 Biosensor System include epidemiologic surveillance, monitoring of pand...

The Plasmodium vivax genome provides new routes and challenges in the global fight against malaria

...earchers from this centre have contributed their experience in studying the virulence of the parasite in order to validate and analyse the data obtained in the s...this field when they discovered the largest family of genes controlling the virulence of this parasite in a study also published in Nature in 2001. The princip...

Isis Announces Award of Up to $8.4 Million in New Government Grants and Contracts to Its Ibis Biosciences Subsidiary for Pathogen Detection and Human Forensics

...e in diagnostic procedures. It is capable of identifying virtually all bacteria, viruses and fungi, and can provide information about drug resistance, virulence and strain type of these pathogens. Commercial applications for the Ibis T5000 Biosensor System include epidemiologic surveillance, monitoring of pand...

U.S. Genomics Inc. Receives $4.5 Million Investment from BD

...gle molecular diagnostic test. A diagnostic platform based on DLA has the potential to provide information to physicians concerning pathogen identity, virulence and drug resistance within hours, as opposed to the multi-day techniques such as culturing, plating, and staining that are done today. U.S. Genomics...

Abbott Invests Additional $20M in Isis' Subsidiary Ibis Biosciences

...e in diagnostic procedures. It is capable of identifying virtually all bacteria, viruses and fungi, and can provide information about drug resistance, virulence and strain type of these pathogens. Commercial applications for the Ibis T5000 Biosensor System include epidemiologic surveillance, monitoring of pand...

Webcast Alert: Isis Pharmaceuticals Announces a Business Update Conference Call

...e in diagnostic procedures. It is capable of identifying virtually all bacteria, viruses and fungi, and can provide information about drug resistance, virulence and strain type of these pathogens. Commercial applications for the Ibis T5000 Biosensor System include epidemiologic surveillance, monitoring of pand...

Scientists develop strategy to rapidly describe outbreak strains with next-generation DNA sequencing

...rrorist attack, rapid identification of the genetic changes responsible for virulence or drug resistance is essential to mounting an effective response. Standar...p to identify immediately the genetic determinants responsible for modified virulence or transmission, explains La Scola. The aim of this work was to evaluate t...

Virulence in Biological Definition

Avian influenza

...Avian influenza in humans 3 Prevention and treatment 4 Increasing virulence 5 Symptoms 6 References 7 External links Infection...ur months to produce and must be prepared for each subtype. Increasing virulence In July 2004 researchers, headed by H. Deng of the Harbin Veterinary R...

Plasmid

...eins that can kill other bacteria. Degrative plasmids , which enable the digestion of unusual substances, e.g., toluole or salicylic acid . virulence plasmids , which turn the bacterium into a pathogen . Plasmids can belong to more than one of these functional groups. Plasmids that exist on...

Virus

...isease in horses, could be responsible for psychiatric illness in humans. The relative ability of viruses to cause disease is described in terms of virulence . The ability of viruses to cause devastating epidemics in human societies has led to concern that viruses will be weaponized for biological warf...

Virulence in Biological Dictionary

Virulence

Virulence is the degree of pathogenicity of an organism: the relative ability of a pathogen to cause disease. The noun virulence derives from the adjective virulent. In discussing disease, the adjective virulent is used to describe effect severity, and in discussing... virulence ( ′virəl...

Mating type

...otato ... Before 1984, A2 mating type had only been detected in Mexico, the possible ... Impact of Mating Type , Serotype, and Ploidy on the virulence of Cryptococcus neoformans. ... Identification of Mating Type Genes in the Bipolar Basidiomycetous Yeast ... ( mating type ) amongst a worldw...

Kilobase

...riant of the polymerase ... One limitation of conventional PCR is that it requires primers complementary to ... ... Analysis of the 50- Kilobase virulence Plasmid of Salmonella ... of 50 kilobase -plasmid, pKDSC50, of Salmonella choleraesuis RF-1 strain on pig septicemia. ... A 1.6- kilobase -pair ...

Glycoprotein

...ult life. Reelin... Lifestyle, fitness & health information about Glycoprotein . ... Human metapneumovirus glycoprotein G is an important virulence factor ... P Glycoprotein , the product of the MDR1 gene, is expressed in distinct non ... Elevated levels of P Glycoprotein have also been rep...

Antigenic variation

...ract: This genetic mechanism, employed by certain bacteria and protozoa, poses a challenge in the development of ... of antigenic variation and virulence ... Antigenic variation is the primary cause of the persistence and lethality of ... This process is called Antigenic Variation , and has...