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Infectious Disease
Making Vaccines from Parts PDF Print E-mail
Saturday, 18 May 2013 06:30

Novartis Vaccines and Diagnostics’ Philip Dormitzer, Ph.D., and his colleagues today report in Science Translational Medicine that they have successfully started and completed a synthetic flu vaccine virus in just one week.

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Potential flu pandemic lurks PDF Print E-mail
Friday, 10 May 2013 23:11
MIT study identifies influenza viruses circulating in pigs and birds that could pose a risk to humans.
CAMBRIDGE, Mass. — In the summer of 1968, a new strain of influenza appeared in Hong Kong. This strain, known as H3N2, spread around the globe and eventually killed an estimated 1 million people.
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Antibody evolution could guide HIV vaccine development PDF Print E-mail
Saturday, 06 April 2013 17:00

Co-evolution of virus and antibody – The evolution of the viral protein (green) from 14 weeks through 100 weeks post-transmission is compared to the maturation of the human antibody. The antibody studied is called a broadly cross-reactive neutralizing antibody, and details of its generation could provide a blueprint for effective vaccination.

LOS ALAMOS, N. M., April 4, 2013—Observing the evolution of a particular type of antibody in an infected HIV-1 patient, a study spearheaded by Duke University, including analysis from Los Alamos National Laboratory, has provided insights that will enable vaccination strategies that mimic the actual antibody development within the body.

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Pitt team finds immunity protein that ramps up inflammation, and agents that can block it PDF Print E-mail
Sunday, 31 March 2013 12:54

Could improve treatments for pneumonia and other inflammatory conditions

Scientists at the University of Pittsburgh School of Medicine have discovered a new biological pathway of innate immunity that ramps up inflammation and then identified agents that can block it, leading to increased survival and improved lung function in animal models of pneumonia. They reported their findings today in Nature Immunology.

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'Defective' virus surprisingly plays major role in spread of disease, UCLA life scientists report PDF Print E-mail
Saturday, 02 March 2013 21:39

Defective viruses, thought for decades to be essentially garbage unrelated to the transmission of normal viruses, now appear able to play an important role in the spread of disease, new research by UCLA life scientists indicates.

Defective viruses have genetic mutations or deletions that eliminate their essential viral functions. They have been observed for many human pathogens and are generated frequently for viruses that have high mutation rates. However, for some 40 years, it was believed that they were unimportant in natural settings.

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Tracking the origins of HIV PDF Print E-mail
Tuesday, 18 December 2012 23:00

URBANA – Human immunodeficiency virus (HIV) may have affected humans for much longer than is currently believed. Alfred Roca, an assistant professor in the College of Agricultural, Consumer and Environmental Sciences at the University of Illinois, thinks that the genomes of an isolated West African human population provide important clues about how the disease has evolved.

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Scripps Research Institute scientists describe elusive replication machinery of flu viruses PDF Print E-mail
Saturday, 24 November 2012 14:11

LA JOLLA, CA – November 22, 2012 – Scientists at The Scripps Research Institute (TSRI) have made a major advance in understanding how flu viruses replicate within infected cells. The researchers used cutting-edge molecular biology and electron-microscopy techniques to "see" one of influenza's essential protein complexes in unprecedented detail. The images generated in the study show flu virus proteins in the act of self-replication, highlighting the virus's vulnerabilities that are sure to be of interest to drug developers.

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Hepatitis C Treatment's Side Effects Can Now Be Studied in the Lab PDF Print E-mail
Monday, 19 November 2012 00:51

16 November 2012 — The adverse side effects of certain hepatitis C medications can now be replicated and observed in Petri dishes and test tubes, thanks to a research team led byCraig Cameron, the Paul Berg Professor of Biochemistry and Molecular Biology at Penn State University. "The new method not only will help us to understand the recent failures of hepatitis C antiviral drugs in some patients in clinical trials," said Cameron. "It also could help to identify medications that eliminate all adverse effects." The team's findings, published in the current issue of the journal PLOS Pathogens, may help pave the way toward the development of safer and more-effective treatments for hepatitis C, as well as other pathogens such as SARS and West Nile virus.

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Feinstein Institute researchers discover that bean used in Chinese food could protect against sepsis PDF Print E-mail
Friday, 26 October 2012 19:04

MANHASSET, NY – Researchers at The Feinstein Institute for Medical Research have discovered that a bean commonly used in Chinese cuisine protects against the life-threatening condition sepsis. These findings are published in the current issue of Evidence-based Complementary and Alternative Medicine (eCAM).

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Compound discovered that boosts effect of vaccines against HIV and flu PDF Print E-mail
Monday, 27 August 2012 00:32

Novel vaccine additive to enhance the body's immune response shows promise in mice

Oxford University scientists have discovered a compound that greatly boosts the effect of vaccines against viruses like flu, HIV and herpes in mice.

An 'adjuvant' is a substance added to a vaccine to enhance the immune response and offer better protection against infection.

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New malaria test kit gives a boost to elimination efforts worldwide PDF Print E-mail
Saturday, 18 May 2013 06:16

LAMP test will also improve diagnosis for imported UK cases

A new, highly sensitive blood test that quickly detects even the lowest levels of malaria parasites in the body could make a dramatic difference in efforts to tackle the disease in the UK and across the world, according to new research published in the Journal of Infectious Diseases.

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The risks of H7N9 infection mapped PDF Print E-mail
Sunday, 05 May 2013 00:28

A map of avian influenza (H7N9) risk is presented in Biomed Central's open access journal Infectious Diseases of Poverty today. The map is comprised of bird migration patterns, and adding in estimations of poultry production and consumption, which are used to infer future risk and to advise on ways to prevent infection.

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New vaccine-design approach targets HIV and other fast-mutating viruses PDF Print E-mail
Sunday, 31 March 2013 12:59

LA JOLLA, CA – March 28, 2013 – A team led by scientists from The Scripps Research Institute (TSRI) and the International AIDS Vaccine Initiative (IAVI) has unveiled a new technique for vaccine design that could be particularly useful against HIV and other fast-changing viruses.

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New study identifies unique mechanisms of antibiotic resistance PDF Print E-mail
Tuesday, 26 March 2013 21:50

BOSTON (March 26, 2013) — As public health authorities across the globe grapple with the growing problem of antibiotic resistance, Tufts University School of Medicine microbiologists and colleagues have identified the unique resistance mechanisms of a clinical isolate of E. coli resistant to carbapenems. Carbapenems are a class of antibiotics used as a last resort for the treatment of disease-causing bacteria, including E. coli and Klebsiella pneumonia, which can cause serious illness and even death. Infections involving resistant strains fail to respond to antibiotic treatments, which can lead to prolonged illness and greater risk of death, as well as significant public health challenges due to increased transmission of infection. The study, published in the April issue of Antimicrobial Agents and Chemotherapy, demonstrates the lengths to which bacteria will go to become resistant to antibiotics.

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Sustained virological response linked with improved survival for patients with chronic HCV infection PDF Print E-mail
Wednesday, 26 December 2012 18:08

Among patients with chronic hepatitis C virus infection and advanced hepatic fibrosis (development of excess fibrous connective tissue), sustained virological response (SVR) to interferon-based treatment was associated with a lower risk of all-cause mortality compared with patients without SVR, according to a study in the December 26 issue of JAMA.

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UNC researchers discover how hepatitis C virus reprograms human liver cells PDF Print E-mail
Tuesday, 18 December 2012 22:56
Hepatitis C virus has evolved to invade and hijack the basic machinery of the human liver cell to ensure its survival and spread. Researchers at the University of North have discovered how hepatitis C binds with and repurposes a basic component of cellular metabolism known as a microRNA to help protect and replicate the virus.
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Study reveals the proteins expressed by human cytomegalovirus PDF Print E-mail
Saturday, 24 November 2012 14:07

Ribosome-mapping technique may provide insights into other viral proteomes as well.

New findings reveal the surprisingly complex protein-coding capacity of the human cytomegalovirus, or HCMV, and provide the first steps toward understanding how the virus manipulates human cells during infection. The genome of the HCMV was first sequenced over 20 years ago, but researchers have now investigated the proteome—the complete set of expressed proteins—of this common pathogen as well.

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Scientists Step Up Hunt for Bacterial Genes Tied to Lyme Disease PDF Print E-mail
Friday, 26 October 2012 21:52

HOUSTON - (Oct. 25, 2012) - Investigators at The University of Texas Health Science Center at Houston (UTHealth) have accelerated the search for the bacterial genes that make the Lyme disease bacterium so invasive and persistent. The discovery could advance the diagnosis and treatment of this disease, which affects an estimated 30,000 Americans each year.

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Design help for drug cocktails PDF Print E-mail
Monday, 03 September 2012 14:13

Harvard researchers create a mathematical model that helps to design efficient multi-drug therapies

For years, doctors treating those with HIV have recognized a relationship between how faithfully patients take the drugs they prescribe, and how likely the virus is to develop drug resistance. More recently, research has shown that the relationship between adherence to a drug regimen and resistance is different for each of the drugs that make up the "cocktail" used to control the disease.

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Danger in the blood: U-M scientists show how antibiotic-resisting bacterial infections may form PDF Print E-mail
Wednesday, 15 August 2012 22:29

Simulated blood flow device provides evidence of how bloodstream infections begin.

New research may help explain why hundreds of thousands of Americans a year get sick – and tens of thousands die – after bacteria get into their blood. It also suggests why some of those bloodstream infections resist treatment with even the most powerful antibiotics.

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