Bacterial News and Research

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Artificial CSP proteins reduce S. pneumoniae competence y more than 90%

The bacterium Streptococcus pneumoniae - which can cause pneumonia, meningitis, bacteremia and sepsis - likes to share its antibiotic-defeating weaponry with its neighbors. Individual cells can pass resistance genes to one another through a process called horizontal gene transfer, or by "transformation," the uptake of DNA from the environment.

26 Oct 2012

Durata completes target enrollment in dalbavancin Phase 3 trial for ABSSSI

Durata Therapeutics today announced that it has completed its target enrollment for DISCOVER 2 ("Dalbavancin for Infections of the Skin COmpared to Vancomycin at an Early Response"), the second global, Phase 3 clinical trial of Durata's lead product candidate, dalbavancin, under investigation for the treatment of acute bacterial skin and skin structure infections (ABSSSI) caused by susceptible gram-positive bacteria.

26 Oct 2012

New study finds bacteria cue single-celled choanoflagellates to form colonies

Bacteria have a bad rap as agents of disease, but scientists are increasingly discovering their many benefits, such as maintaining a healthy gut.

25 Oct 2012

New method of testing for West Nile virus

While the United States has largely been spared the scourge of mosquito-borne diseases endemic to the developing world-including yellow fever, malaria and dengue fever-mosquito-related illnesses in the US are on the rise. One pathogen of increasing concern in the U.S. is an arbovirus known as West Nile.

24 Oct 2012

Bisphosphonates increase risk for bone disease after tooth extraction

The risk for developing osteonecrosis of the jaw after a tooth extraction is significantly higher among patients who receive bisphosphonates than those who do not, suggest study findings.

23 Oct 2012

Researchers increase potency of a compound that reactivates antibiotics against MRSA

Researchers from North Carolina State University have increased the potency of a compound that reactivates antibiotics against methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant form of Staphylococcus that is notoriously difficult to treat. Their improved compound removes the bacteria's antibiotic resistance and allows the antibiotic to once again become effective at normal dosage levels.

23 Oct 2012

Bodyguard macrophages protect stem cells from over-differentiation

Hiding deep inside the bone marrow are special cells. They wait patiently for the hour of need, at which point these blood forming stem cells can proliferate and differentiate into billions of mature blood immune cells to help the body cope with infection, for example, or extra red blood cells for low oxygen levels at high altitudes. Even in emergencies, however, the body keeps to a long-term plan: It maintains a reserve of undifferentiated stem cells for future needs and crises.

23 Oct 2012

Insight into calcium pumps in cells

When animals and plants are exposed to influences such as bacterial attack, odour and cold, calcium ions flow into the cells. The calcium provides the cells with a signal about what is going on outside, but as high concentrations of calcium are toxic to the cells, it must be quickly pumped out again.

22 Oct 2012

Microgravity and prolonged space flight could give unique advantages to germs

The cabin of a spacecraft halfway to Mars would be the least convenient place -- one cannot say "on earth" -- for a Salmonella or Pneumococcus outbreak, but a wide-ranging new paper suggests that microgravity and prolonged space flight could give unique advantages to germs.

22 Oct 2012

Older antibiotic shows success in treating drug-resistant TB in small study

"An antibiotic used to treat severe bacterial infections showed promise at treating a highly drug-resistant and deadly form of tuberculosis [TB]," according to a study conducted by U.S. government and South Korean researchers and published in the New England Journal of Medicine on Wednesday, Reuters reports (Steenhuysen, 10/17).

20 Oct 2012

Researchers identify crucial stage in the lifecycle of simple viruses

Researchers at the University of Leeds have identified a crucial stage in the lifecycle of simple viruses like polio and the common cold that could open a new front in the war on viral disease.

20 Oct 2012

New discovery could help revolutionize antibiotic treatment of bacteria

Three Simon Fraser University scientists are among six researchers who've made a discovery that could help revolutionize antibiotic treatment of deadly bacteria.

20 Oct 2012

House dust protein worsens allergic asthma symptoms

A bacterial protein found in common house dust may worsen a person’s asthmatic response to other indoor allergens, say researchers.

19 Oct 2012

Babies born to HIV positive mothers more likely to acquire measles

Non-infected babies born to HIV positive mothers should be vaccinated early against measles, to avoid them acquiring the virus or passing it on to others.

19 Oct 2012

Linezolid proves effective in treating drug-resistant TB

When tested in patients hospitalized with extensively drug-resistant tuberculosis (XDR-TB) unresponsive to previous treatment, linezolid, an antibiotic used to treat severe bacterial infections, proved largely effective when added to the patients' ongoing TB treatment regimen.

19 Oct 2012

Flagellin in house dust may worsen allergic responses to inhaled substances

A bacterial protein in common house dust may worsen allergic responses to indoor allergens, according to research conducted by the National Institutes of Health and Duke University. The finding is the first to document the presence of the protein flagellin in house dust, bolstering the link between allergic asthma and the environment.

16 Oct 2012

NIAID-funded study to evaluate PPSV23 and PCV13 in Phase Iib pneumococcal trial

Researchers plan to see if a higher dose of a pneumococcal vaccine will create a stronger immune response in older adults who received an earlier generation vaccine against pneumonia and other pneumococcal diseases.

16 Oct 2012

FOS prebiotic could replace intravenous feeding in pediatric patients with intestinal failure

Adding the right prebiotic to the diets of pediatric patients with intestinal failure could replace intravenous feeding, says a new University of Illinois study.

16 Oct 2012

Researchers develop two ultra-rapid tests for diagnosis of antibiotic resistance

With their excellent sensitivity and specificity, the use of these extremely efficient tests on a world-wide scale would allow us to adapt antibiotic treatments to the individual's needs and to be more successful in controlling antibiotic resistance, particularly in hospitals.

15 Oct 2012

Researchers identify keys and doors of Anaplasmataceae tick-borne bacterium

Virginia Commonwealth University School of Medicine researchers have identified the "keys" and "doors" of a bacterium responsible for a series of tick-transmitted diseases. These findings may point researchers toward the development of a single vaccine that protects against members of an entire family of bacteria that cause disease in humans, domestic animals and livestock.

15 Oct 2012